From 608e90e998107f8b834d4edc8ea918041725c551 Mon Sep 17 00:00:00 2001
From: "Pulinckx Pierre (PIPU)" <pipu@odoo.com>
Date: Tue, 18 Apr 2023 12:36:07 +0000
Subject: [PATCH] [REF] *: Replace underscore functions by native JS

Replace _.map(), _.flatten(), _.delay(), _.contains(), _.pluck(), _.isUndefined(), _.isEmpty(), _.isString(), _.isEqual(), _.isBoolean(), _.memoize(), _.invoke(), _.bind(), _.escape(), _.debounce(),
_.str.sprintf(), _.str.repeat(), _.str.startswith(), _.str.trim(),
_.str.escapeHTML(), _.str.escapeRegExp(), _.str.startsWith(), _.str.include()

closes odoo/odoo#118012

Signed-off-by: Lucas Perais (lpe) <lpe@odoo.com>
---
 .../static/src/js/totp_frontend.js            |  4 +-
 addons/board/static/src/board_view.js         |  9 ++-
 .../static/src/legacy/core_models/device.js   |  3 +-
 .../legacy/legacy_models/public_livechat.js   | 10 +--
 .../src/legacy/public_models/chatbot.js       |  3 +-
 .../public_models/livechat_button_view.js     |  3 +-
 .../public_models/public_livechat_global.js   |  2 +-
 .../public_livechat_view.js                   |  3 +-
 .../public_livechat_window.js                 |  7 +-
 addons/l10n_fr_pos_cert/static/src/js/pos.js  |  2 +-
 addons/mail/static/src/js/utils.js            | 27 ++++----
 .../mock_server/models/mail_activity.js       | 13 ++--
 addons/mail/static/tests/mail_utils_tests.js  |  1 +
 .../static/src/js/mailing_portal.js           |  4 +-
 .../static/src/js/mass_mailing_html_field.js  |  2 +-
 addons/payment/static/src/js/checkout_form.js |  3 +-
 addons/payment/static/src/js/manage_form.js   |  3 +-
 .../static/src/js/payment_form_mixin.js       | 28 ++++++--
 addons/point_of_sale/static/src/js/db.js      |  2 +-
 addons/point_of_sale/static/src/js/models.js  | 31 +++------
 .../portal/static/src/js/portal_composer.js   |  4 +-
 .../static/src/js/portal_chatter.js           |  2 +-
 addons/pos_loyalty/static/src/js/Loyalty.js   |  7 +-
 .../static/src/js/PaymentScreen.js            |  4 +-
 .../src/app/floor_screen/floor_screen.js      | 65 ++++++++++++-------
 .../SplitBillScreen/SplitBillScreen.js        |  4 +-
 .../static/src/js/purchase_portal_sidebar.js  | 27 ++++----
 .../sale/static/src/js/sale_portal_sidebar.js |  6 +-
 addons/sale/static/src/js/variant_mixin.js    | 14 ++--
 .../static/src/js/sale_product_field.js       |  2 +-
 .../static/src/js/survey_session_manage.js    |  4 +-
 addons/web/static/src/core/utils/numbers.js   |  9 +--
 .../web/static/src/legacy/js/core/context.js  |  2 +-
 .../web/static/src/legacy/js/core/dialog.js   |  4 +-
 .../web/static/src/legacy/js/core/domain.js   | 17 ++---
 addons/web/static/src/legacy/js/core/misc.js  |  4 +-
 .../web/static/src/legacy/js/core/mixins.js   |  2 +-
 .../web/static/src/legacy/js/core/popover.js  |  3 +-
 .../web/static/src/legacy/js/core/py_utils.js |  8 +--
 addons/web/static/src/legacy/js/core/rpc.js   |  6 +-
 .../web/static/src/legacy/js/core/session.js  |  4 +-
 addons/web/static/src/legacy/js/core/utils.js |  2 +-
 .../web/static/src/legacy/js/core/widget.js   | 10 +--
 .../src/legacy/js/fields/basic_fields.js      |  3 +-
 .../src/legacy/js/fields/field_utils.js       | 43 ++++++------
 .../src/legacy/js/fields/relational_fields.js |  8 +--
 .../src/legacy/js/public/public_root.js       |  2 +-
 .../src/legacy/js/public/public_widget.js     |  4 +-
 .../static/src/legacy/js/services/config.js   |  5 +-
 .../src/legacy/js/views/basic/basic_model.js  | 46 ++++++-------
 .../views/standalone_field_manager_mixin.js   |  2 +-
 .../static/src/legacy/js/views/view_utils.js  |  4 +-
 .../src/legacy/js/widgets/domain_selector.js  | 18 ++---
 .../widgets/model_field_selector_popover.js   |  6 +-
 .../legacy/js/widgets/name_and_signature.js   |  3 +-
 .../static/tests/core/utils/numbers_test.js   | 15 +++++
 .../web/static/tests/helpers/mock_server.js   |  5 +-
 .../legacy/control_panel/filter_menu_tests.js |  1 +
 .../static/tests/legacy/core/time_tests.js    |  4 +-
 .../static/tests/legacy/core/widget_tests.js  |  2 +-
 .../tests/legacy/helpers/mock_server.js       | 27 ++++----
 addons/web/static/tests/legacy/qweb_tests.js  |  9 +--
 .../tests/legacy/views/basic_model_tests.js   |  2 +-
 addons/web/static/tests/qunit.js              |  7 +-
 .../views/fields/many2many_field_tests.js     |  3 +-
 .../fields/many2many_tags_field_tests.js      |  5 +-
 .../views/fields/percent_pie_field_tests.js   | 21 +++---
 .../static/src/js/backend/convert_inline.js   |  9 ++-
 .../static/src/js/backend/html_field.js       |  7 +-
 addons/web_editor/static/src/js/common/ace.js | 17 ++---
 .../static/src/js/editor/snippets.editor.js   | 13 ++--
 .../static/src/js/editor/snippets.options.js  | 15 +++--
 .../web_editor/static/src/js/wysiwyg/fonts.js |  2 +-
 addons/web_editor/static/tests/test_utils.js  |  8 +--
 .../static/src/tour_service/tour_utils.js     |  2 +-
 .../static/src/js/unsplash_beacon.js          |  2 +-
 .../src/js/content/snippets.animation.js      | 20 +++---
 .../static/src/js/editor/snippets.editor.js   |  6 +-
 .../static/src/js/editor/widget_link.js       |  3 +-
 .../website/static/src/js/editor/wysiwyg.js   |  2 +-
 addons/website/static/src/js/utils.js         |  6 +-
 .../static/src/snippets/s_chart/options.js    | 10 ++-
 .../src/snippets/s_image_gallery/options.js   |  2 +-
 .../static/src/snippets/s_searchbar/000.js    |  5 +-
 .../static/src/snippets/s_website_form/000.js |  7 +-
 .../tours/website_form_editor_frontend.js     |  2 +-
 .../static/src/js/website_event.js            |  2 +-
 .../static/src/js/event_exhibitor_connect.js  |  3 +-
 .../static/src/js/event_track_reminder.js     |  3 +-
 .../static/src/js/website_forum.js            |  9 ++-
 .../static/src/js/website_links.js            |  8 ++-
 .../static/src/js/website_sale.js             |  9 ++-
 .../static/src/js/website_sale_payment.js     | 14 ++--
 .../src/js/website_sale_recently_viewed.js    |  3 +-
 .../static/src/js/website_sale_comparison.js  |  6 +-
 .../static/src/js/website_sale_wishlist.js    |  6 +-
 .../src/js/slides_course_fullscreen_player.js |  8 +--
 .../static/src/js/slides_course_quiz.js       |  2 +-
 .../src/js/slides_course_quiz_finish.js       | 12 ++--
 .../static/src/js/slides_embed.js             | 11 +++-
 .../static/src/js/slides_share.js             |  6 +-
 .../static/src/js/slides_upload.js            |  2 +-
 .../src/js/website.twitter.animation.js       |  9 +--
 103 files changed, 483 insertions(+), 383 deletions(-)
 create mode 100644 addons/web/static/tests/core/utils/numbers_test.js

diff --git a/addons/auth_totp_portal/static/src/js/totp_frontend.js b/addons/auth_totp_portal/static/src/js/totp_frontend.js
index 3449ac82d6c..7bc1067da8c 100644
--- a/addons/auth_totp_portal/static/src/js/totp_frontend.js
+++ b/addons/auth_totp_portal/static/src/js/totp_frontend.js
@@ -57,9 +57,7 @@ function fromField(f, record) {
             clipboard.on('success', function () {
                 clipboard.destroy();
                 $(copyButton).tooltip('show');
-                _.delay(function () {
-                    $(copyButton).tooltip("hide");
-                }, 800);
+                setTimeout(() => $(copyButton).tooltip("hide"), 800);
             });
             clipboard.on('error', function (e) {
                 clipboard.destroy();
diff --git a/addons/board/static/src/board_view.js b/addons/board/static/src/board_view.js
index 431978a99b9..5968839b695 100644
--- a/addons/board/static/src/board_view.js
+++ b/addons/board/static/src/board_view.js
@@ -5,6 +5,7 @@ import { registry } from "@web/core/registry";
 import { BoardController } from "./board_controller";
 import { XMLParser } from "@web/core/utils/xml";
 import { Domain } from "@web/core/domain";
+import { escape } from "@web/core/utils/strings";
 
 export class BoardArchParser extends XMLParser {
     parse(arch, customViewId) {
@@ -36,7 +37,7 @@ export class BoardArchParser extends XMLParser {
                     const isFolded = Boolean(
                         node.hasAttribute("fold") ? parseInt(node.getAttribute("fold"), 10) : 0
                     );
-                    let action = {
+                    const action = {
                         id: nextId++,
                         title: node.getAttribute("string"),
                         actionId: parseInt(node.getAttribute("name"), 10),
@@ -45,10 +46,12 @@ export class BoardArchParser extends XMLParser {
                         isFolded,
                     };
                     if (node.hasAttribute("domain")) {
-                        action.domain = new Domain(_.unescape(node.getAttribute("domain"))).toList();
+                        action.domain = new Domain(
+                            _.unescape(node.getAttribute("domain"))
+                        ).toList();
                         // so it can be serialized when reexporting board xml
                         // we unescape before re-escaping, to avoid double escaping due to subsequent layout change
-                        action.domain.toString = () => _.escape(_.unescape(node.getAttribute("domain")));
+                        action.domain.toString = () => escape(node.getAttribute("domain"));
                     }
                     archInfo.columns[currentIndex].actions.push(action);
                     break;
diff --git a/addons/im_livechat/static/src/legacy/core_models/device.js b/addons/im_livechat/static/src/legacy/core_models/device.js
index 69ae1906e50..f30234f75af 100644
--- a/addons/im_livechat/static/src/legacy/core_models/device.js
+++ b/addons/im_livechat/static/src/legacy/core_models/device.js
@@ -4,13 +4,14 @@ import { attr, Model } from "@im_livechat/legacy/model";
 import { browser } from "@web/core/browser/browser";
 import { isMobileOS } from "@web/core/browser/feature_detection";
 import { SIZES } from "@web/core/ui/ui_service";
+import { debounce } from "@web/core/utils/timing";
 
 Model({
     name: "Device",
     lifecycleHooks: {
         _created() {
             this._refresh();
-            this._onResize = _.debounce(() => this._refresh(), 100);
+            this._onResize = debounce(() => this._refresh(), 100);
         },
         _willDelete() {
             browser.removeEventListener("resize", this._onResize);
diff --git a/addons/im_livechat/static/src/legacy/legacy_models/public_livechat.js b/addons/im_livechat/static/src/legacy/legacy_models/public_livechat.js
index 57960c8bc41..86e96b29609 100644
--- a/addons/im_livechat/static/src/legacy/legacy_models/public_livechat.js
+++ b/addons/im_livechat/static/src/legacy/legacy_models/public_livechat.js
@@ -102,7 +102,7 @@ const PublicLivechat = Class.extend(Mixins.EventDispatcherMixin, {
             });
         }
 
-        if (_.isBoolean(params.data.folded)) {
+        if (typeof params.data.folded === "boolean") {
             this.messaging.publicLivechatGlobal.publicLivechat.update({
                 isFolded: params.data.folded,
             });
@@ -207,7 +207,7 @@ const PublicLivechat = Class.extend(Mixins.EventDispatcherMixin, {
      * @returns {boolean}
      */
     hasMessages() {
-        return !_.isEmpty(this.getMessages());
+        return Object.keys(this.getMessages() || {}).length > 0;
     },
     /**
      * Tells if someone other than current user is typing something on this
@@ -216,7 +216,7 @@ const PublicLivechat = Class.extend(Mixins.EventDispatcherMixin, {
      * @returns {boolean}
      */
     isSomeoneTyping() {
-        return !_.isEmpty(this._typingPartnerIDs);
+        return Object.keys(this._typingPartnerIDs || {}).length > 0;
     },
     /**
      * Mark the thread as read, which resets the unread counter to 0. This is
@@ -269,7 +269,7 @@ const PublicLivechat = Class.extend(Mixins.EventDispatcherMixin, {
             timeoutCallbackArguments: [partnerID],
             timerID: partnerID,
         });
-        if (_.contains(this._typingPartnerIDs, partnerID)) {
+        if (this._typingPartnerIDs.includes(partnerID)) {
             return;
         }
         this._typingPartnerIDs.push(partnerID);
@@ -327,7 +327,7 @@ const PublicLivechat = Class.extend(Mixins.EventDispatcherMixin, {
     unregisterTyping(params) {
         const partnerID = params.partnerID;
         this._othersTypingTimers.unregisterTimer({ timerID: partnerID });
-        if (!_.contains(this._typingPartnerIDs, partnerID)) {
+        if (!this._typingPartnerIDs.includes(partnerID)) {
             return;
         }
         this._typingPartnerIDs = this._typingPartnerIDs.filter((id) => id !== partnerID);
diff --git a/addons/im_livechat/static/src/legacy/public_models/chatbot.js b/addons/im_livechat/static/src/legacy/public_models/chatbot.js
index a09f05f168f..8537de4b32f 100644
--- a/addons/im_livechat/static/src/legacy/public_models/chatbot.js
+++ b/addons/im_livechat/static/src/legacy/public_models/chatbot.js
@@ -1,6 +1,7 @@
 /** @odoo-module **/
 
 import { attr, one, clear, increment, Model } from "@im_livechat/legacy/model";
+import { debounce } from "@web/core/utils/timing";
 
 import { qweb } from "web.core";
 import { Markup } from "web.utils";
@@ -410,7 +411,7 @@ Model({
         debouncedAwaitUserInput: attr({
             compute() {
                 // debounced to let the user type several sentences, see 'Chatbot/awaitUserInput' for details
-                return _.debounce(this.awaitUserInput, this.awaitUserInputDebounceTime);
+                return debounce(this.awaitUserInput, this.awaitUserInputDebounceTime);
             },
         }),
         hasRestartButton: attr({
diff --git a/addons/im_livechat/static/src/legacy/public_models/livechat_button_view.js b/addons/im_livechat/static/src/legacy/public_models/livechat_button_view.js
index 7ea79b5a56e..59ba9bc8555 100644
--- a/addons/im_livechat/static/src/legacy/public_models/livechat_button_view.js
+++ b/addons/im_livechat/static/src/legacy/public_models/livechat_button_view.js
@@ -1,6 +1,7 @@
 /** @odoo-module **/
 
 import { attr, clear, one, Model } from "@im_livechat/legacy/model";
+import { debounce } from "@web/core/utils/timing";
 
 import { getCookie, deleteCookie } from "web.utils.cookies";
 
@@ -480,7 +481,7 @@ Model({
         }),
         openChatDebounced: attr({
             compute() {
-                return _.debounce(this._openChat, 200, true);
+                return debounce(this._openChat, 200, true);
             },
         }),
         publicLivechatGlobalOwner: one("PublicLivechatGlobal", {
diff --git a/addons/im_livechat/static/src/legacy/public_models/public_livechat_global.js b/addons/im_livechat/static/src/legacy/public_models/public_livechat_global.js
index b2998e09970..fc726e7ccc2 100644
--- a/addons/im_livechat/static/src/legacy/public_models/public_livechat_global.js
+++ b/addons/im_livechat/static/src/legacy/public_models/public_livechat_global.js
@@ -17,7 +17,7 @@ Model({
             if (pageHistory) {
                 urlHistory = JSON.parse(pageHistory) || [];
             }
-            if (!_.contains(urlHistory, page)) {
+            if (!urlHistory.includes(page)) {
                 urlHistory.push(page);
                 while (urlHistory.length > this.HISTORY_LIMIT) {
                     urlHistory.shift();
diff --git a/addons/im_livechat/static/src/legacy/widgets/public_livechat_view/public_livechat_view.js b/addons/im_livechat/static/src/legacy/widgets/public_livechat_view/public_livechat_view.js
index 17b542431a5..02ada9f4aa5 100644
--- a/addons/im_livechat/static/src/legacy/widgets/public_livechat_view/public_livechat_view.js
+++ b/addons/im_livechat/static/src/legacy/widgets/public_livechat_view/public_livechat_view.js
@@ -1,6 +1,7 @@
 /** @odoo-module **/
 
 import * as mailUtils from "@mail/js/utils";
+import { debounce } from "@web/core/utils/timing";
 
 import core from "web.core";
 import time from "web.time";
@@ -324,7 +325,7 @@ const PublicLivechatView = Widget.extend({
      * @param {string} options.model
      * @param {integer} options.id
      */
-    _redirect: _.debounce(
+    _redirect: debounce(
         function (options) {
             if ("channelID" in options) {
                 this.trigger("redirect_to_channel", options.channelID);
diff --git a/addons/im_livechat/static/src/legacy/widgets/public_livechat_window/public_livechat_window.js b/addons/im_livechat/static/src/legacy/widgets/public_livechat_window/public_livechat_window.js
index b86a05dee04..967efb9f3c8 100644
--- a/addons/im_livechat/static/src/legacy/widgets/public_livechat_window/public_livechat_window.js
+++ b/addons/im_livechat/static/src/legacy/widgets/public_livechat_window/public_livechat_window.js
@@ -6,6 +6,7 @@ import Widget from "web.Widget";
 
 import { unaccent } from "web.utils";
 import { setCookie } from "web.utils.cookies";
+import { debounce } from "@web/core/utils/timing";
 
 /**
  * This is the widget that represent windows of livechat in the frontend.
@@ -35,7 +36,7 @@ const PublicLivechatWindow = Widget.extend({
         this._super(parent);
         this.messaging = messaging;
 
-        this._debouncedOnScroll = _.debounce(this._onScroll.bind(this), 100);
+        this._debouncedOnScroll = debounce(this._onScroll.bind(this), 100);
     },
     /**
      * @override
@@ -175,7 +176,7 @@ const PublicLivechatWindow = Widget.extend({
      *   Otherwise, fold/unfold the window if set/unset.
      */
     toggleFold(folded) {
-        if (!_.isBoolean(folded)) {
+        if (typeof folded !== "boolean") {
             folded = !this.messaging.publicLivechatGlobal.publicLivechat.isFolded;
         }
         this.messaging.publicLivechatGlobal.publicLivechat.update({ isFolded: folded });
@@ -327,7 +328,7 @@ const PublicLivechatWindow = Widget.extend({
         ev.stopPropagation(); // to prevent jquery's blockUI to cancel event
         // ENTER key (avoid requiring jquery ui for external livechat)
         if (ev.which === 13) {
-            const content = _.str.trim(this.$input.val());
+            const content = String(this.$input.val() || "").trim();
             const messageData = {
                 content,
                 attachment_ids: [],
diff --git a/addons/l10n_fr_pos_cert/static/src/js/pos.js b/addons/l10n_fr_pos_cert/static/src/js/pos.js
index 1edc8148419..f3bc8e575f2 100644
--- a/addons/l10n_fr_pos_cert/static/src/js/pos.js
+++ b/addons/l10n_fr_pos_cert/static/src/js/pos.js
@@ -17,7 +17,7 @@ patch(PosGlobalState.prototype, "l10n_fr_pos_cert.PosGlobalState", {
             });
             return false;
         }
-        return _.contains(french_countries, this.company.country.code);
+        return french_countries.includes(this.company.country.code);
     },
     disallowLineQuantityChange() {
         const result = this._super(...arguments);
diff --git a/addons/mail/static/src/js/utils.js b/addons/mail/static/src/js/utils.js
index 8e94c665351..fa51a663a9e 100644
--- a/addons/mail/static/src/js/utils.js
+++ b/addons/mail/static/src/js/utils.js
@@ -40,11 +40,13 @@ function parseAndTransform(htmlString, transformFunction) {
  * @return {string}
  */
 function _parseAndTransform(nodes, transformFunction) {
-    return _.map(nodes, function (node) {
-        return transformFunction(node, function () {
-            return _parseAndTransform(node.childNodes, transformFunction);
-        });
-    }).join("");
+    return Array.from($(nodes))
+        .map((node) => {
+            return transformFunction(node, function () {
+                return _parseAndTransform(node.childNodes, transformFunction);
+            });
+        })
+        .join("");
 }
 
 /**
@@ -85,16 +87,19 @@ function linkify(text, attrs) {
     if (attrs.target === "_blank") {
         attrs.rel = "noreferrer noopener";
     }
-    attrs = _.map(attrs, function (value, key) {
-        return key + '="' + _.escape(value) + '"';
-    }).join(" ");
+    attrs = Object.keys(attrs || {})
+        .map((key) => {
+            const value = attrs[key];
+            return `${key}="${escape(value)}"`;
+        })
+        .join(" ");
     let curIndex = 0;
     let result = "";
     let match;
     while ((match = urlRegexp.exec(text)) !== null) {
         result += _escapeEntities(text.slice(curIndex, match.index));
         const url = match[0];
-        const href = !/^https?:\/\//i.test(url) ? "http://" + _.escape(url) : _.escape(url);
+        const href = !/^https?:\/\//i.test(url) ? "http://" + encodeURI(url) : encodeURI(url);
         result += "<a " + attrs + ' href="' + href + '">' + _escapeEntities(url) + "</a>";
         curIndex = match.index + match[0].length;
     }
@@ -175,11 +180,11 @@ function parseEmail(text) {
     if (text) {
         var result = text.match(/"?(.*?)"? <(.*@.*)>/);
         if (result) {
-            return [_.str.trim(result[1]), _.str.trim(result[2])];
+            return [(result[1] || "").trim(), (result[2] || "").trim()];
         }
         result = text.match(/(.*@.*)/);
         if (result) {
-            return [_.str.trim(result[1]), _.str.trim(result[1])];
+            return [String(result[1] || "").trim(), String(result[1] || "").trim()];
         }
         return [text, false];
     }
diff --git a/addons/mail/static/tests/helpers/mock_server/models/mail_activity.js b/addons/mail/static/tests/helpers/mock_server/models/mail_activity.js
index 7fdef784444..79984b8380e 100644
--- a/addons/mail/static/tests/helpers/mock_server/models/mail_activity.js
+++ b/addons/mail/static/tests/helpers/mock_server/models/mail_activity.js
@@ -115,7 +115,7 @@ patch(MockServer.prototype, "mail/models/mail_activity", {
         const records = this.getRecords(res_model, domain);
 
         const activityTypes = this.getRecords("mail.activity.type", []);
-        const activityIds = _.pluck(records, "activity_ids").flat();
+        const activityIds = records.map((x) => x.activity_ids).flat();
 
         const groupedActivities = {};
         const resIdToDeadline = {};
@@ -157,7 +157,7 @@ patch(MockServer.prototype, "mail/models/mail_activity", {
                 count: group.__count,
                 state: state,
                 o_closest_deadline: group.date_deadline,
-                ids: _.pluck(activites, "id"),
+                ids: activites.map((x) => x.id),
             };
         });
 
@@ -177,9 +177,12 @@ patch(MockServer.prototype, "mail/models/mail_activity", {
                 }
                 return [type.id, type.display_name, mailTemplates];
             }),
-            activity_res_ids: _.sortBy(_.pluck(records, "id"), function (id) {
-                return moment(resIdToDeadline[id]);
-            }),
+            activity_res_ids: _.sortBy(
+                records.map((x) => x.id),
+                function (id) {
+                    return moment(resIdToDeadline[id]);
+                }
+            ),
             grouped_activities: groupedActivities,
         };
     },
diff --git a/addons/mail/static/tests/mail_utils_tests.js b/addons/mail/static/tests/mail_utils_tests.js
index 059abd627ea..1ba95a72ca3 100644
--- a/addons/mail/static/tests/mail_utils_tests.js
+++ b/addons/mail/static/tests/mail_utils_tests.js
@@ -18,6 +18,7 @@ QUnit.test("add_link utility function", function (assert) {
         "https://tenor.com/view/chỗgiặt-dog-smile-gif-13860250": true,
         "http://www.boîtenoire.be": true,
     };
+
     for (const [content, willLinkify] of Object.entries(testInputs)) {
         const output = utils.parseAndTransform(content, utils.addLink);
         if (willLinkify) {
diff --git a/addons/mass_mailing/static/src/js/mailing_portal.js b/addons/mass_mailing/static/src/js/mailing_portal.js
index 7e1d612e563..417cc0a2131 100644
--- a/addons/mass_mailing/static/src/js/mailing_portal.js
+++ b/addons/mass_mailing/static/src/js/mailing_portal.js
@@ -4,7 +4,7 @@
     import ajax from "web.ajax";
     import core from "web.core";
     import "web.dom_ready";
-    import { sprintf } from "@web/core/utils/strings";
+    import { sprintf, escape } from "@web/core/utils/strings";
 
     var _t = core._t;
 
@@ -48,7 +48,7 @@ if ($('.o_unsubscribe_form').length) {
         if (unsubscribed_list){
             $('#subscription_info').html(sprintf(
                 _t("You have been <strong>successfully unsubscribed from %s</strong>."),
-                _.escape(unsubscribed_list)
+                escape(unsubscribed_list)
             ));
         }
         else{
diff --git a/addons/mass_mailing/static/src/js/mass_mailing_html_field.js b/addons/mass_mailing/static/src/js/mass_mailing_html_field.js
index 1bf755c1e55..913a70dc639 100644
--- a/addons/mass_mailing/static/src/js/mass_mailing_html_field.js
+++ b/addons/mass_mailing/static/src/js/mass_mailing_html_field.js
@@ -262,7 +262,7 @@ export class MassMailingHtmlField extends HtmlField {
                 device.isMobile ?
                 $themes.filter(theme => !$(theme).data("hideFromMobile")) :
                 $themes;
-            this._themeParams = _.map(displayableThemes, (theme) => {
+            this._themeParams = Array.from(displayableThemes).map((theme) => {
                 const $theme = $(theme);
                 const name = $theme.data("name");
                 const classname = "o_" + name + "_theme";
diff --git a/addons/payment/static/src/js/checkout_form.js b/addons/payment/static/src/js/checkout_form.js
index a078e628b7e..ca2d6b96d5a 100644
--- a/addons/payment/static/src/js/checkout_form.js
+++ b/addons/payment/static/src/js/checkout_form.js
@@ -3,6 +3,7 @@
     import publicWidget from "web.public.widget";
 
     import paymentFormMixin from "payment.payment_form_mixin";
+    import { debounce } from "@web/core/utils/timing";
 
     publicWidget.registry.PaymentCheckoutForm = publicWidget.Widget.extend(paymentFormMixin, {
         selector: 'form[name="o_payment_checkout"]',
@@ -19,7 +20,7 @@
          */
         init: function () {
             const preventDoubleClick = handlerMethod => {
-                return _.debounce(handlerMethod, 500, true);
+                return debounce(handlerMethod, 500, true);
             };
             this._super(...arguments);
             // Prevent double-clicks and browser glitches on all inputs
diff --git a/addons/payment/static/src/js/manage_form.js b/addons/payment/static/src/js/manage_form.js
index 0eb04900d6d..c0a6f56b93c 100644
--- a/addons/payment/static/src/js/manage_form.js
+++ b/addons/payment/static/src/js/manage_form.js
@@ -5,6 +5,7 @@
     import Dialog from "web.Dialog";
 
     import paymentFormMixin from "payment.payment_form_mixin";
+import { debounce } from "@web/core/utils/timing";
 
     const _t = core._t;
 
@@ -24,7 +25,7 @@
          */
         init: function () {
             const preventDoubleClick = handlerMethod => {
-                return _.debounce(handlerMethod, 500, true);
+                return debounce(handlerMethod, 500, true);
             };
             this._super(...arguments);
             // Prevent double-clicks and browser glitches on all inputs
diff --git a/addons/payment/static/src/js/payment_form_mixin.js b/addons/payment/static/src/js/payment_form_mixin.js
index 8bafa44180d..d2ff5f1c66e 100644
--- a/addons/payment/static/src/js/payment_form_mixin.js
+++ b/addons/payment/static/src/js/payment_form_mixin.js
@@ -5,6 +5,26 @@
 
     const _t = core._t;
 
+    /**
+     * Replace HTML character with ASCII character
+     *
+     * @param {string} str string
+     * @returns {string} ASCII string
+     */
+    function escapeHTML(str) {
+        const htmlCaracters = {
+            "&": "&amp;",
+            "<": "&lt;",
+            ">": "&gt;",
+            "'": "&#39;",
+            '"': "&quot;",
+        };
+        for (const [key, value] of Object.entries(htmlCaracters)) {
+            str = String(str).replace(new RegExp(key, "g"), value);
+        }
+        return str;
+    }
+
     export default {
 
         /**
@@ -76,7 +96,7 @@
                 return new Dialog(null, {
                     title: _.str.sprintf(_t("Error: %s"), title),
                     size: 'medium',
-                    $content: `<p>${_.str.escapeHTML(description) || ''}</p>`,
+                    $content: `<p>${escapeHTML(description) || ''}</p>`,
                     buttons: [{text: _t("Ok"), close: true}]
                 }).open();
             } else { // Show error in inline form
@@ -84,12 +104,12 @@
 
                 // Build the html for the error
                 let errorHtml = `<div class="alert alert-danger mb4" name="o_payment_error">
-                                 <b>${_.str.escapeHTML(title)}</b>`;
+                                 <b>${escapeHTML(title)}</b>`;
                 if (description !== '') {
-                    errorHtml += `</br>${_.str.escapeHTML(description)}`;
+                    errorHtml += `</br>${escapeHTML(description)}`;
                 }
                 if (error !== '') {
-                    errorHtml += `</br>${_.str.escapeHTML(error)}`;
+                    errorHtml += `</br>${escapeHTML(error)}`;
                 }
                 errorHtml += '</div>';
 
diff --git a/addons/point_of_sale/static/src/js/db.js b/addons/point_of_sale/static/src/js/db.js
index ef50ddd0468..64d3a32bfff 100644
--- a/addons/point_of_sale/static/src/js/db.js
+++ b/addons/point_of_sale/static/src/js/db.js
@@ -230,7 +230,7 @@ export const PosDB = core.Class.extend({
     },
     add_packagings: function (product_packagings) {
         var self = this;
-        _.map(product_packagings, function (product_packaging) {
+        Object.values(product_packagings || {}).map((product_packaging) => {
             const products = Object.values(self.product_by_id);
             if (products.find(({ id }) => id === product_packaging.product_id[0])) {
                 self.product_packaging_by_barcode[product_packaging.barcode] = product_packaging;
diff --git a/addons/point_of_sale/static/src/js/models.js b/addons/point_of_sale/static/src/js/models.js
index 1bd84a9026d..b2a4a6e70a9 100644
--- a/addons/point_of_sale/static/src/js/models.js
+++ b/addons/point_of_sale/static/src/js/models.js
@@ -1011,7 +1011,7 @@ export class PosGlobalState extends PosModel {
         // Keep the order ids that are about to be sent to the
         // backend. In between create_from_ui and the success callback
         // new orders may have been added to it.
-        var order_ids_to_sync = _.pluck(orders, "id");
+        var order_ids_to_sync = orders.map((o) => o.id);
 
         for (const order of orders) {
             order.to_invoice = options.to_invoice || false;
@@ -1590,10 +1590,9 @@ export class Product extends PosModel {
         let draftPackLotLines, weight, description, packLotLinesToEdit;
 
         if (this.attribute_line_ids.some((id) => id in this.pos.attributes_by_ptal_id)) {
-            const attributes = _.map(
-                this.attribute_line_ids,
-                (id) => this.pos.attributes_by_ptal_id[id]
-            ).filter((attr) => attr !== undefined);
+            const attributes = this.attribute_line_ids
+                .map((id) => this.pos.attributes_by_ptal_id[id])
+                .filter((attr) => attr !== undefined);
             const { confirmed, payload } = await this.pos.env.services.popup.add(
                 ProductConfiguratorPopup,
                 {
@@ -2172,15 +2171,7 @@ export class Orderline extends PosModel {
             price_subtotal_incl: this.get_price_with_tax(),
             discount: this.get_discount(),
             product_id: this.get_product().id,
-            tax_ids: [
-                [
-                    6,
-                    false,
-                    _.map(this.get_applicable_taxes(), function (tax) {
-                        return tax.id;
-                    }),
-                ],
-            ],
+            tax_ids: [[6, false, this.get_applicable_taxes().map((tax) => tax.id)]],
             id: this.id,
             pack_lot_ids: pack_lot_ids,
             description: this.description,
@@ -2441,7 +2432,7 @@ export class Orderline extends PosModel {
                 if (line_taxes.length && line_taxes[0].price_include) {
                     new_included_taxes = new_included_taxes.concat(line_taxes);
                 }
-                if (tax.price_include && !_.contains(line_taxes, tax)) {
+                if (tax.price_include && !line_taxes.includes(tax)) {
                     mapped_included_taxes.push(tax);
                 }
             });
@@ -2521,7 +2512,7 @@ export class Packlotline extends PosModel {
     }
 
     set_lot_name(name) {
-        this.lot_name = _.str.trim(name) || null;
+        this.lot_name = String(name || "").trim() || null;
     }
 
     get_lot_name() {
@@ -2836,11 +2827,9 @@ export class Order extends PosModel {
             return orderLines.push([0, 0, item.export_as_JSON()]);
         });
         paymentLines = [];
-        this.paymentlines.forEach(
-            _.bind(function (item) {
-                return paymentLines.push([0, 0, item.export_as_JSON()]);
-            }, this)
-        );
+        this.paymentlines.forEach((item) => {
+            return paymentLines.push([0, 0, item.export_as_JSON()]);
+        });
         var json = {
             name: this.get_name(),
             amount_paid: this.get_total_paid() - this.get_change(),
diff --git a/addons/portal/static/src/js/portal_composer.js b/addons/portal/static/src/js/portal_composer.js
index 70276392bb5..de02036b661 100644
--- a/addons/portal/static/src/js/portal_composer.js
+++ b/addons/portal/static/src/js/portal_composer.js
@@ -147,8 +147,8 @@ var PortalComposer = publicWidget.Widget.extend({
     _prepareMessageData: function () {
         return Object.assign(this.options || {}, {
             'message': this.$('textarea[name="message"]').val(),
-            'attachment_ids': _.pluck(this.attachments, 'id'),
-            'attachment_tokens': _.pluck(this.attachments, 'access_token'),
+            attachment_ids: this.attachments.map((a) => a.id),
+            attachment_tokens: this.attachments.map((a) => a.access_token),
         });
     },
     /**
diff --git a/addons/portal_rating/static/src/js/portal_chatter.js b/addons/portal_rating/static/src/js/portal_chatter.js
index 801d0b0b1fa..326ff99f6d9 100644
--- a/addons/portal_rating/static/src/js/portal_chatter.js
+++ b/addons/portal_rating/static/src/js/portal_chatter.js
@@ -32,7 +32,7 @@ PortalChatter.include({
     init: function (parent, options) {
         this._super.apply(this, arguments);
         // options
-        if (!_.contains(this.options, 'display_rating')) {
+        if (!Object.keys(this.options).includes("display_rating")) {
             this.options = _.defaults(this.options, {
                 'display_rating': false,
                 'rating_default_value': 0.0,
diff --git a/addons/pos_loyalty/static/src/js/Loyalty.js b/addons/pos_loyalty/static/src/js/Loyalty.js
index d0f854aefda..39543497e9d 100644
--- a/addons/pos_loyalty/static/src/js/Loyalty.js
+++ b/addons/pos_loyalty/static/src/js/Loyalty.js
@@ -377,7 +377,7 @@ patch(Order.prototype, "pos_loyalty.Order", {
     },
     wait_for_push_order() {
         return (
-            !_.isEmpty(this.couponPointChanges) ||
+            Object.keys(this.couponPointChanges || {}).length > 0 ||
             this._has_gift_card_product() ||
             this._get_reward_lines().length ||
             this._super(...arguments)
@@ -931,12 +931,11 @@ patch(Order.prototype, "pos_loyalty.Order", {
                                 continue;
                             }
                             let price_to_use = line.get_price_with_tax();
-                            if (program.program_type === 'gift_card') {
+                            if (program.program_type === "gift_card") {
                                 price_to_use = line.price;
                             }
                             const pointsPerUnit = round_precision(
-                                (rule.reward_point_amount * price_to_use) /
-                                    line.get_quantity(),
+                                (rule.reward_point_amount * price_to_use) / line.get_quantity(),
                                 0.01
                             );
                             if (pointsPerUnit > 0) {
diff --git a/addons/pos_loyalty/static/src/js/PaymentScreen.js b/addons/pos_loyalty/static/src/js/PaymentScreen.js
index 4bd3fa5590c..f6b5b671c08 100644
--- a/addons/pos_loyalty/static/src/js/PaymentScreen.js
+++ b/addons/pos_loyalty/static/src/js/PaymentScreen.js
@@ -33,7 +33,7 @@ patch(PaymentScreen.prototype, "pos_loyalty.PaymentScreen", {
             return;
         }
         // No need to do an rpc if no existing coupon is being used.
-        if (!_.isEmpty(pointChanges) || newCodes.length) {
+        if (Object.keys(pointChanges || {}).length > 0 || newCodes.length) {
             try {
                 const { successful, payload } = await this.orm.call(
                     "pos.order",
@@ -121,7 +121,7 @@ patch(PaymentScreen.prototype, "pos_loyalty.PaymentScreen", {
                 return true;
             })
         );
-        if (!_.isEmpty(couponData)) {
+        if (Object.keys(couponData || []).length > 0) {
             const payload = await this.orm.call("pos.order", "confirm_coupon_programs", [
                 server_ids,
                 couponData,
diff --git a/addons/pos_restaurant/static/src/app/floor_screen/floor_screen.js b/addons/pos_restaurant/static/src/app/floor_screen/floor_screen.js
index 99dbf4d8e72..c6930d426f2 100644
--- a/addons/pos_restaurant/static/src/app/floor_screen/floor_screen.js
+++ b/addons/pos_restaurant/static/src/app/floor_screen/floor_screen.js
@@ -15,6 +15,7 @@ import { Table } from "./table";
 import { usePos } from "@point_of_sale/app/pos_hook";
 import { useService } from "@web/core/utils/hooks";
 import { Component, onPatched, onMounted, onWillUnmount, useRef, useState } from "@odoo/owl";
+import { sprintf } from "@web/core/utils/strings";
 
 export class FloorScreen extends Component {
     static components = { EditableTable, EditBar, Table };
@@ -98,7 +99,7 @@ export class FloorScreen extends Component {
     _onDeselectTable() {
         this.state.selectedTableIds = [];
     }
-    async _createTableHelper(copyTable, duplicateFloor=false) {
+    async _createTableHelper(copyTable, duplicateFloor = false) {
         const existingTable = this.activeFloor.tables;
         let newTable;
         if (copyTable) {
@@ -226,9 +227,13 @@ export class FloorScreen extends Component {
         this.activeFloor.table_ids.push(newTable.id);
         return newTable;
     }
-    _getNewTableName() {     
+    _getNewTableName() {
         let firstNum = 1;
-        const tablesNameNumber = this.activeTables.map(table => +table.name).sort(function(a, b){return a-b});
+        const tablesNameNumber = this.activeTables
+            .map((table) => +table.name)
+            .sort(function (a, b) {
+                return a - b;
+            });
 
         for (let i = 0; i < tablesNameNumber.length; i++) {
             if (tablesNameNumber[i] == firstNum) {
@@ -262,7 +267,9 @@ export class FloorScreen extends Component {
                 //This will lead in receiving information on orders from a table that we do not have.
                 //If we do not have a table in the PoS but still receive information about it, we reload the tables
                 //from the server.
-                const result = await this.orm.call("pos.session", "get_pos_ui_restaurant_floor", [[odoo.pos_session_id]]);
+                const result = await this.orm.call("pos.session", "get_pos_ui_restaurant_floor", [
+                    [odoo.pos_session_id],
+                ]);
                 if (this.env.pos.config.is_table_management) {
                     this.env.pos.floors = result;
                     this.env.pos.loadRestaurantFloor();
@@ -279,8 +286,10 @@ export class FloorScreen extends Component {
             table_obj.order_count = table.orders + unsynced_orders;
         }
     }
-    get activeFloor() { 
-        return this.state.selectedFloorId ? this.env.pos.floors_by_id[this.state.selectedFloorId] : null;
+    get activeFloor() {
+        return this.state.selectedFloorId
+            ? this.env.pos.floors_by_id[this.state.selectedFloorId]
+            : null;
     }
     get activeTables() {
         return this.activeFloor ? this.activeFloor.tables : null;
@@ -368,7 +377,11 @@ export class FloorScreen extends Component {
         if (!confirmed) {
             return;
         }
-        const floor = await this.orm.call("restaurant.floor", "create_from_ui", [newName, "#ACADAD",this.env.pos.config.id]);
+        const floor = await this.orm.call("restaurant.floor", "create_from_ui", [
+            newName,
+            "#ACADAD",
+            this.env.pos.config.id,
+        ]);
         this.env.pos.floors_by_id[floor.id] = floor;
         this.env.pos.floors.push(floor);
         this.selectFloor(floor);
@@ -386,10 +399,14 @@ export class FloorScreen extends Component {
             const floor = this.activeFloor;
             const tables = this.activeFloor.tables;
             const newFloorName = floor.name + " (copy)";
-            const newFloor = await this.orm.call("restaurant.floor", "create_from_ui", [newFloorName, floor.background_color, this.env.pos.config.id]);
+            const newFloor = await this.orm.call("restaurant.floor", "create_from_ui", [
+                newFloorName,
+                floor.background_color,
+                this.env.pos.config.id,
+            ]);
             this.env.pos.floors_by_id[newFloor.id] = newFloor;
             this.env.pos.floors.push(newFloor);
-            this.selectFloor(newFloor)
+            this.selectFloor(newFloor);
             for (const table of tables) {
                 await this._createTableHelper(table, true);
             }
@@ -458,8 +475,7 @@ export class FloorScreen extends Component {
                 selectedTable.seats = newSeatsNum;
                 await this._save(selectedTable);
             }
-        })
-        
+        });
     }
     async changeToCircle() {
         await this.changeShape("round");
@@ -474,7 +490,7 @@ export class FloorScreen extends Component {
         this.selectedTables.forEach(async (selectedTable) => {
             selectedTable.shape = form;
             await this._save(selectedTable);
-        })
+        });
         this.render();
     }
     async setTableColor(color) {
@@ -482,7 +498,7 @@ export class FloorScreen extends Component {
         selectedTables.forEach(async (selectedTable) => {
             selectedTable.color = color;
             await this._save(selectedTable);
-        })
+        });
         this.render();
         this.state.isColorPicker = false;
     }
@@ -500,8 +516,8 @@ export class FloorScreen extends Component {
     async deleteFloorOrTable() {
         if (this.selectedTables.length == 0) {
             const { confirmed } = await this.popup.add(ConfirmPopup, {
-                title: _.str.sprintf("Removing floor %s", this.activeFloor.name),
-                body: _.str.sprintf(
+                title: `Removing floor ${this.activeFloor.name}`,
+                body: sprintf(
                     this.env._t("Removing a floor cannot be undone. Do you still wanna remove %s?"),
                     this.activeFloor.name
                 ),
@@ -511,7 +527,8 @@ export class FloorScreen extends Component {
             }
             const originalSelectedFloorId = this.activeFloor.id;
             await this.orm.call("restaurant.floor", "deactivate_floor", [
-                originalSelectedFloorId, this.env.pos.pos_session.id
+                originalSelectedFloorId,
+                this.env.pos.pos_session.id,
             ]);
             const floor = this.env.pos.floors_by_id[originalSelectedFloorId];
             const orderList = [...this.env.pos.get_order_list()];
@@ -524,7 +541,9 @@ export class FloorScreen extends Component {
                 delete this.env.pos.tables_by_id[tableId];
             });
             delete this.env.pos.floors_by_id[originalSelectedFloorId];
-            this.env.pos.floors = this.env.pos.floors.filter((floor) => floor.id != originalSelectedFloorId);
+            this.env.pos.floors = this.env.pos.floors.filter(
+                (floor) => floor.id != originalSelectedFloorId
+            );
             this.env.pos.TICKET_SCREEN_STATE.syncedOrders.cache = {};
             if (this.env.pos.floors.length > 0) {
                 this.selectFloor(this.env.pos.floors[0]);
@@ -558,17 +577,17 @@ export class FloorScreen extends Component {
                 await this.orm.call("restaurant.table", "create_from_ui", [
                     { active: false, id: id },
                 ]);
-                this.activeFloor.tables = this.activeTables.filter(
-                    (table) => table.id !== id
-                );
+                this.activeFloor.tables = this.activeTables.filter((table) => table.id !== id);
                 delete this.env.pos.tables_by_id[id];
             } else {
                 await this.popup.add(ErrorPopup, {
                     title: this.env._t("Delete Error"),
-                    body: this.env._t("You cannot delete a table with orders still in draft for this table."),
+                    body: this.env._t(
+                        "You cannot delete a table with orders still in draft for this table."
+                    ),
                 });
             }
-        })
+        });
         // Value of an object can change inside async function call.
         //   Which means that in this code block, the value of `state.selectedTableId`
         //   before the await call can be different after the finishing the await call.
@@ -577,7 +596,7 @@ export class FloorScreen extends Component {
         //   else is selected during the rpc call.
         const equalsCheck = (a, b) => {
             return JSON.stringify(a) === JSON.stringify(b);
-        }
+        };
         if (equalsCheck(this.state.selectedTableIds, originalSelectedTableIds)) {
             this.state.selectedTableIds = [];
         }
diff --git a/addons/pos_restaurant/static/src/js/Screens/SplitBillScreen/SplitBillScreen.js b/addons/pos_restaurant/static/src/js/Screens/SplitBillScreen/SplitBillScreen.js
index 58dcc8401b3..750e6bd63ba 100644
--- a/addons/pos_restaurant/static/src/js/Screens/SplitBillScreen/SplitBillScreen.js
+++ b/addons/pos_restaurant/static/src/js/Screens/SplitBillScreen/SplitBillScreen.js
@@ -5,7 +5,7 @@ import { Order } from "@point_of_sale/js/models";
 import { SplitOrderline } from "./SplitOrderline";
 import { registry } from "@web/core/registry";
 import { usePos } from "@point_of_sale/app/pos_hook";
-import { Component, useState, onMounted  } from "@odoo/owl";
+import { Component, useState, onMounted } from "@odoo/owl";
 
 export class SplitBillScreen extends Component {
     static template = "SplitBillScreen";
@@ -46,7 +46,7 @@ export class SplitBillScreen extends Component {
         this.pos.showScreen("ProductScreen");
     }
     proceed() {
-        if (_.isEmpty(this.splitlines)) {
+        if (Object.keys(this.splitlines || {})?.length === 0) {
             // Splitlines is empty
             return;
         }
diff --git a/addons/purchase/static/src/js/purchase_portal_sidebar.js b/addons/purchase/static/src/js/purchase_portal_sidebar.js
index 03f15ab5eeb..a5f1033367e 100644
--- a/addons/purchase/static/src/js/purchase_portal_sidebar.js
+++ b/addons/purchase/static/src/js/purchase_portal_sidebar.js
@@ -118,22 +118,19 @@ publicWidget.registry.PurchasePortalSidebar = PortalSidebar.extend({
     _extractText: function ($node) {
         var self = this;
         var rawText = [];
-        $node
-            .contents()
-            .toArray()
-            .forEach((el) => {
-                var current = $(el);
-                if ($.trim(current.text())) {
-                    var tagName = current.prop("tagName");
-                    if (
-                        _.isUndefined(tagName) ||
-                        (!_.isUndefined(tagName) &&
-                            _.contains(self.authorizedTextTag, tagName.toLowerCase()))
-                    ) {
-                        rawText.push($.trim(current.text()));
-                    }
+        Array.from($node.contents()).forEach((el) => {
+            var current = $(el);
+            if ($.trim(current.text())) {
+                var tagName = current.prop("tagName");
+                if (
+                    typeof tagName === "undefined" ||
+                    (typeof tagName !== "undefined" &&
+                        self.authorizedTextTag.includes(tagName.toLowerCase()))
+                ) {
+                    rawText.push($.trim(current.text()));
                 }
-            });
+            }
+        });
         return rawText.join(" ");
     },
 });
diff --git a/addons/sale/static/src/js/sale_portal_sidebar.js b/addons/sale/static/src/js/sale_portal_sidebar.js
index 8a55538f71b..7b5872da523 100644
--- a/addons/sale/static/src/js/sale_portal_sidebar.js
+++ b/addons/sale/static/src/js/sale_portal_sidebar.js
@@ -105,7 +105,11 @@ publicWidget.registry.SalePortalSidebar = PortalSidebar.extend({
             var current = $(el);
             if ($.trim(current.text())) {
                 var tagName = current.prop("tagName");
-                if (_.isUndefined(tagName) || (!_.isUndefined(tagName) && _.contains(self.authorizedTextTag, tagName.toLowerCase()))) {
+                if (
+                    typeof tagName === "undefined" ||
+                    (typeof tagName !== "undefined" &&
+                        self.authorizedTextTag.includes(tagName.toLowerCase()))
+                ) {
                     rawText.push($.trim(current.text()));
                 }
             }
diff --git a/addons/sale/static/src/js/variant_mixin.js b/addons/sale/static/src/js/variant_mixin.js
index 8e481e7bee5..f3097e548da 100644
--- a/addons/sale/static/src/js/variant_mixin.js
+++ b/addons/sale/static/src/js/variant_mixin.js
@@ -5,6 +5,8 @@ import core from "web.core";
 import utils from "web.utils";
 import ajax from "web.ajax";
 import { sprintf } from "@web/core/utils/strings";
+import { memoize } from "@web/core/utils/functions";
+
 var _t = core._t;
 
 var VariantMixin = {
@@ -39,7 +41,7 @@ var VariantMixin = {
         if (!$parent.data('uniqueId')) {
             $parent.data('uniqueId', _.uniqueId());
         }
-        this._throttledGetCombinationInfo($parent.data('uniqueId'))(ev);
+        this._throttledGetCombinationInfo(this, $parent.data('uniqueId'))(ev);
     },
     /**
      * @see onChangeVariant
@@ -523,7 +525,7 @@ var VariantMixin = {
         $default_price.text(self._priceToStr(combination.list_price));
 
         var isCombinationPossible = true;
-        if (!_.isUndefined(combination.is_combination_possible)) {
+        if (typeof combination.is_combination_possible !== "undefined") {
             isCombinationPossible = combination.is_combination_possible;
         }
         this._toggleDisable($parent, isCombinationPossible);
@@ -628,12 +630,10 @@ var VariantMixin = {
      * @param {string} uniqueId
      * @returns {function}
      */
-    _throttledGetCombinationInfo: _.memoize(function (uniqueId) {
+    _throttledGetCombinationInfo: memoize(function (self, uniqueId) {
         var dropMisordered = new concurrency.DropMisordered();
-        var _getCombinationInfo = _.throttle(this._getCombinationInfo.bind(this), 500);
-        return function (ev, params) {
-            return dropMisordered.add(_getCombinationInfo(ev, params));
-        };
+        var _getCombinationInfo = _.throttle(self._getCombinationInfo.bind(self), 500);
+        return (ev, params) => dropMisordered.add(_getCombinationInfo(ev, params));
     }),
     /**
      * Toggles the disabled class depending on the $parent element
diff --git a/addons/sale_product_configurator/static/src/js/sale_product_field.js b/addons/sale_product_configurator/static/src/js/sale_product_field.js
index 1408efc59ae..4e96d2b1dd5 100644
--- a/addons/sale_product_configurator/static/src/js/sale_product_field.js
+++ b/addons/sale_product_configurator/static/src/js/sale_product_field.js
@@ -210,7 +210,7 @@ patch(SaleOrderLineProductField.prototype, 'sale_product_configurator', {
         var noVariantAttributeValues = mainProduct.no_variant_attribute_values;
         var noVariantCommands = [{ operation: "DELETE_ALL" }];
         if (noVariantAttributeValues && noVariantAttributeValues.length !== 0) {
-            var resIds = _.map(noVariantAttributeValues, function (noVariantValue) {
+            var resIds = noVariantAttributeValues.map((noVariantValue) => {
                 return { id: parseInt(noVariantValue.value) };
             });
 
diff --git a/addons/survey/static/src/js/survey_session_manage.js b/addons/survey/static/src/js/survey_session_manage.js
index e248c525667..3ff31e8a6b2 100644
--- a/addons/survey/static/src/js/survey_session_manage.js
+++ b/addons/survey/static/src/js/survey_session_manage.js
@@ -116,9 +116,7 @@ publicWidget.registry.SurveySessionManage = publicWidget.Widget.extend(SurveyPre
         clipboard.on('success', function () {
             clipboard.destroy();
             $clipboardBtn.popover('show');
-            _.delay(function () {
-                $clipboardBtn.popover('hide');
-            }, 800);
+            setTimeout(() => $clipboardBtn.popover('hide'), 800);
         });
 
         clipboard.on('error', function (e) {
diff --git a/addons/web/static/src/core/utils/numbers.js b/addons/web/static/src/core/utils/numbers.js
index 54b0405492a..8fd0ac71e82 100644
--- a/addons/web/static/src/core/utils/numbers.js
+++ b/addons/web/static/src/core/utils/numbers.js
@@ -16,15 +16,16 @@ export function clamp(num, min, max) {
  * A function to create flexibly-numbered lists of integers, handy for each and map loops.
  * step defaults to 1.
  * Returns a list of integers from start (inclusive) to stop (exclusive), incremented (or decremented) by step.
- * @param {number} min default 0
- * @param {number} max
+ * @param {number} start default 0
+ * @param {number} stop
  * @param {number} step default 1
  * @returns {number[]}
  */
 export function range(start, stop, step = 1) {
     const array = [];
-    for (let i = start; i < stop; i += step) {
-        array.push(i);
+    const nsteps = Math.floor((stop - start) / step);
+    for (let i = 0; i < nsteps; i++) {
+        array.push(start + step * i);
     }
     return array;
 }
diff --git a/addons/web/static/src/legacy/js/core/context.js b/addons/web/static/src/legacy/js/core/context.js
index 03c2d024d99..e9c59f60813 100644
--- a/addons/web/static/src/legacy/js/core/context.js
+++ b/addons/web/static/src/legacy/js/core/context.js
@@ -9,7 +9,7 @@ var Context = Class.extend({
         this.__contexts = [];
         this.__eval_context = null;
         var self = this;
-        Object.values(arguments).forEach((x) => self.add(x));
+        Object.values(arguments || {}).forEach((x) => self.add(x));
     },
 
     //--------------------------------------------------------------------------
diff --git a/addons/web/static/src/legacy/js/core/dialog.js b/addons/web/static/src/legacy/js/core/dialog.js
index ec803e51a25..3ba2ceefca1 100644
--- a/addons/web/static/src/legacy/js/core/dialog.js
+++ b/addons/web/static/src/legacy/js/core/dialog.js
@@ -137,7 +137,7 @@ var Dialog = Widget.extend({
                 self.$footer = self.$modal.find(".modal-footer");
                 self.set_buttons(self.buttons);
             }
-            self.$modal.on('hidden.bs.modal', _.bind(self.destroy, self));
+            self.$modal.on('hidden.bs.modal', self.destroy.bind(self));
         });
     },
     /**
@@ -312,7 +312,7 @@ var Dialog = Widget.extend({
     _setButtonsTo($target, buttons) {
         var self = this;
         $target.empty();
-        buttons.forEach(buttonData => {
+        buttons.forEach((buttonData) => {
             var $button = dom.renderButton({
                 attrs: {
                     class: buttonData.classes || (buttons.length > 1 ? 'btn-secondary' : 'btn-primary'),
diff --git a/addons/web/static/src/legacy/js/core/domain.js b/addons/web/static/src/legacy/js/core/domain.js
index 504144fb2cd..66daf5e9807 100644
--- a/addons/web/static/src/legacy/js/core/domain.js
+++ b/addons/web/static/src/legacy/js/core/domain.js
@@ -35,7 +35,7 @@ var Domain = collections.Tree.extend({
      */
     init: function (domain, evalContext) {
         this._super.apply(this, arguments);
-        if (Array.isArray(domain) || _.isString(domain)) {
+        if (Array.isArray(domain) || typeof domain === "string") {
             this._parse(this.normalizeArray(_.clone(this.stringToArray(domain, evalContext))));
         } else {
             this._data = !!domain;
@@ -87,10 +87,10 @@ var Domain = collections.Tree.extend({
             switch (this._data[1]) {
                 case "=":
                 case "==":
-                    return _.isEqual(fieldValue, this._data[2]);
+                    return JSON.stringify(fieldValue) === JSON.stringify(this._data[2]);
                 case "!=":
                 case "<>":
-                    return !_.isEqual(fieldValue, this._data[2]);
+                    return JSON.stringify(fieldValue) !== JSON.stringify(this._data[2]);
                 case "<":
                     return (fieldValue < this._data[2]);
                 case ">":
@@ -156,9 +156,10 @@ var Domain = collections.Tree.extend({
             return [];
         } else {
             var arr = [this._data];
-            return arr.concat.apply(arr, _.map(this._children, function (child) {
-                return child.toArray();
-            }));
+            return arr.concat.apply(
+                arr,
+                this._children.map((child) => child.toArray())
+            );
         }
     },
     /**
@@ -239,7 +240,7 @@ var Domain = collections.Tree.extend({
      * @returns {string}
      */
     arrayToString: function (domain) {
-        if (_.isString(domain)) return domain;
+        if (typeof domain === "string") return domain;
 
         function jsToPy(p) {
             switch (p) {
@@ -267,7 +268,7 @@ var Domain = collections.Tree.extend({
      * @returns {Array}
      */
     stringToArray: function (domain, evalContext) {
-        if (!_.isString(domain)) return _.clone(domain);
+        if (typeof domain !== "string") return _.clone(domain);
         return pyUtils.eval("domain", domain ? domain.replace(/%%/g, '%') : "[]", evalContext);
     },
     /**
diff --git a/addons/web/static/src/legacy/js/core/misc.js b/addons/web/static/src/legacy/js/core/misc.js
index 95b6a71373b..4d24a24ec81 100644
--- a/addons/web/static/src/legacy/js/core/misc.js
+++ b/addons/web/static/src/legacy/js/core/misc.js
@@ -86,7 +86,9 @@ function blockUI() {
 }
 
 function unblockUI() {
-    _.invoke(throbbers, 'destroy');
+    throbbers.forEach((throbber) => {
+        throbber.destroy();
+    });
     throbbers = [];
     $(document.body).removeClass('o_ui_blocked');
     unblockAccessKeys();
diff --git a/addons/web/static/src/legacy/js/core/mixins.js b/addons/web/static/src/legacy/js/core/mixins.js
index ad0302e6c32..bbb4d367ca4 100644
--- a/addons/web/static/src/legacy/js/core/mixins.js
+++ b/addons/web/static/src/legacy/js/core/mixins.js
@@ -277,7 +277,7 @@ var EventDispatcherMixin = Object.assign({}, ParentedMixin, {
         };
     },
     _delegateCustomEvents: function () {
-        if (_.isEmpty(this.custom_events)) { return; }
+        if (Object.keys(this.custom_events || {}).length === 0) { return; }
         for (var key in this.custom_events) {
             if (!this.custom_events.hasOwnProperty(key)) { continue; }
 
diff --git a/addons/web/static/src/legacy/js/core/popover.js b/addons/web/static/src/legacy/js/core/popover.js
index 92ea2039c44..a0df16ee345 100644
--- a/addons/web/static/src/legacy/js/core/popover.js
+++ b/addons/web/static/src/legacy/js/core/popover.js
@@ -1,5 +1,6 @@
 /** @odoo-module alias=web.Popover **/
     
+    import { debounce } from "@web/core/utils/timing";
     import { LegacyComponent } from "@web/legacy/legacy_component";
     const { status, onWillUnmount, useEffect, useRef, useState } = owl;
 
@@ -29,7 +30,7 @@
             this._onResizeWindow = this._onResizeWindow.bind(this);
 
             this._onScrollDocument = _.throttle(this._onScrollDocument, 50);
-            this._onResizeWindow = _.debounce(this._onResizeWindow, 250);
+            this._onResizeWindow = debounce(this._onResizeWindow, 250);
 
             /**
              * Those events are only necessary if the popover is currently open,
diff --git a/addons/web/static/src/legacy/js/core/py_utils.js b/addons/web/static/src/legacy/js/core/py_utils.js
index b84a953e492..ca61fd7ed35 100644
--- a/addons/web/static/src/legacy/js/core/py_utils.js
+++ b/addons/web/static/src/legacy/js/core/py_utils.js
@@ -109,8 +109,8 @@ function eval_contexts(contexts, evaluation_context) {
     return _(contexts).reduce(function (result_context, ctx) {
         // __eval_context evaluations can lead to some of `contexts`'s
         // values being null, skip them as well as empty contexts
-        if (_.isEmpty(ctx)) { return result_context; }
-        if (_.isString(ctx)) {
+        if (Object.keys(ctx || {}).length === 0) { return result_context; }
+        if (typeof ctx === "string") {
             // wrap raw strings in context
             ctx = { __ref: 'context', __debug: ctx };
         }
@@ -144,7 +144,7 @@ function eval_domains(domains, evaluation_context) {
         (domains[0][0] === "|" || domains[0][0] === "!")
     );
     _(domains).each(function (domain) {
-        if (_.isString(domain)) {
+        if (typeof domain === "string") {
             // wrap raw strings in domain
             domain = { __ref: 'domain', __debug: domain };
         }
@@ -190,7 +190,7 @@ function eval_groupbys(contexts, evaluation_context) {
     evaluation_context = Object.assign(pycontext(), evaluation_context || {});
     var result_group = [];
     _(contexts).each(function (ctx) {
-        if (_.isString(ctx)) {
+        if (typeof ctx === "string") {
             // wrap raw strings in context
             ctx = { __ref: 'context', __debug: ctx };
         }
diff --git a/addons/web/static/src/legacy/js/core/rpc.js b/addons/web/static/src/legacy/js/core/rpc.js
index 68fe98369ab..a36d325a2a3 100644
--- a/addons/web/static/src/legacy/js/core/rpc.js
+++ b/addons/web/static/src/legacy/js/core/rpc.js
@@ -116,9 +116,9 @@ const rpc = {
      * @returns {string}
      */
     _serializeSort: function (orderBy) {
-        return _.map(orderBy, function (order) {
-            return order.name + (order.asc !== false ? ' ASC' : ' DESC');
-        }).join(', ');
+        return orderBy
+            .map((order) => order.name + (order.asc !== false ? " ASC" : " DESC"))
+            .join(", ");
     },
 };
 
diff --git a/addons/web/static/src/legacy/js/core/session.js b/addons/web/static/src/legacy/js/core/session.js
index 85f13a8de92..c7cf10291b2 100644
--- a/addons/web/static/src/legacy/js/core/session.js
+++ b/addons/web/static/src/legacy/js/core/session.js
@@ -47,7 +47,7 @@ var Session = core.Class.extend(mixins.EventDispatcherMixin, {
         // must be able to customize server
         var window_origin = location.protocol + "//" + location.host;
         origin = origin ? origin.replace( /\/+$/, '') : window_origin;
-        if (!_.isUndefined(this.origin) && this.origin !== origin)
+        if (typeof this.origin !== "undefined" && this.origin !== origin)
             throw new Error('Session already bound to ' + this.origin);
         else
             this.origin = origin;
@@ -256,7 +256,7 @@ var Session = core.Class.extend(mixins.EventDispatcherMixin, {
         }
 
         // TODO: remove
-        if (! _.isString(url)) {
+        if (typeof url !== "string") {
             Object.assign(options, url);
             url = url.url;
         }
diff --git a/addons/web/static/src/legacy/js/core/utils.js b/addons/web/static/src/legacy/js/core/utils.js
index 5ca513bf99c..0759eb8d07e 100644
--- a/addons/web/static/src/legacy/js/core/utils.js
+++ b/addons/web/static/src/legacy/js/core/utils.js
@@ -949,7 +949,7 @@ const utils = {
      */
     toBoolElse: function (str, elseValues, trueValues, falseValues) {
         var ret = _.str.toBool(str, trueValues, falseValues);
-        if (_.isUndefined(ret)) {
+        if (typeof ret === "undefined") {
             return elseValues;
         }
         return ret;
diff --git a/addons/web/static/src/legacy/js/core/widget.js b/addons/web/static/src/legacy/js/core/widget.js
index d0249a34c54..8306349450b 100644
--- a/addons/web/static/src/legacy/js/core/widget.js
+++ b/addons/web/static/src/legacy/js/core/widget.js
@@ -218,7 +218,7 @@ var Widget = core.Class.extend(mixins.PropertiesMixin, ServicesMixin, {
      * @param {boolean} [display] use true to show the widget or false to hide it
      */
     do_toggle: function (display) {
-        if (_.isBoolean(display)) {
+        if (typeof display === "boolean") {
             display ? this.do_show() : this.do_hide();
         } else if (this.$el) {
             this.$el.hasClass('o_hidden') ? this.do_show() : this.do_hide();
@@ -283,9 +283,9 @@ var Widget = core.Class.extend(mixins.PropertiesMixin, ServicesMixin, {
      * @returns {Promise}
      */
     replace: function (target) {
-        return this._widgetRenderAndInsert(_.bind(function (t) {
+        return this._widgetRenderAndInsert((t) => {
             this.$el.replaceAll(t);
-        }, this), target);
+        }, target);
     },
     /**
      * Re-sets the widget's root element (el/$el/$el).
@@ -337,7 +337,7 @@ var Widget = core.Class.extend(mixins.PropertiesMixin, ServicesMixin, {
      */
     _delegateEvents: function () {
         var events = this.events;
-        if (_.isEmpty(events)) { return; }
+        if (Object.keys(events || {}).length === 0) { return; }
 
         for(var key in events) {
             if (!events.hasOwnProperty(key)) { continue; }
@@ -372,7 +372,7 @@ var Widget = core.Class.extend(mixins.PropertiesMixin, ServicesMixin, {
             attrs['class'] = this.className;
         }
         var $el = $(document.createElement(this.tagName));
-        if (!_.isEmpty(attrs)) {
+        if (Object.keys(attrs || {}).length > 0) {
             $el.attr(attrs);
         }
         return $el;
diff --git a/addons/web/static/src/legacy/js/fields/basic_fields.js b/addons/web/static/src/legacy/js/fields/basic_fields.js
index b34f63be877..a4ff266bb8d 100644
--- a/addons/web/static/src/legacy/js/fields/basic_fields.js
+++ b/addons/web/static/src/legacy/js/fields/basic_fields.js
@@ -16,6 +16,7 @@ import session from "web.session";
 import field_utils from "web.field_utils";
 import utils from "web.utils";
 import { sprintf } from "@web/core/utils/strings";
+import { debounce } from "@web/core/utils/timing";
 
 var _t = core._t;
 var _lt = core._lt;
@@ -238,7 +239,7 @@ var DebouncedField = AbstractField.extend({
         this._isDirty = false;
         if (this.mode === 'edit') {
             if (this.DEBOUNCE) {
-                this._doDebouncedAction = _.debounce(this._doAction, this.DEBOUNCE);
+                this._doDebouncedAction = debounce(this._doAction, this.DEBOUNCE);
             } else {
                 this._doDebouncedAction = this._doAction;
             }
diff --git a/addons/web/static/src/legacy/js/fields/field_utils.js b/addons/web/static/src/legacy/js/fields/field_utils.js
index 0c6ef19bb93..32ce9b2f131 100644
--- a/addons/web/static/src/legacy/js/fields/field_utils.js
+++ b/addons/web/static/src/legacy/js/fields/field_utils.js
@@ -14,7 +14,7 @@
  * conversions.
  */
 
-import { sprintf } from "@web/core/utils/strings";
+import { escape, escapeRegExp, sprintf } from "@web/core/utils/strings";
 import core from "web.core";
 import dom from "web.dom";
 import session from "web.session";
@@ -87,10 +87,10 @@ function formatBoolean(value, field, options) {
 function formatChar(value, field, options) {
     value = typeof value === 'string' ? value : '';
     if (options && options.isPassword) {
-        return _.str.repeat('*', value ? value.length : 0);
+        return "*".repeat(value ? value.length : 0);
     }
     if (options && options.escape) {
-        value = _.escape(value);
+        value = escape(value);
     }
     return value;
 }
@@ -241,7 +241,7 @@ function formatFloatTime(value, field, options) {
 function formatInteger(value, field, options) {
     options = options || {};
     if (options.isPassword) {
-        return _.str.repeat('*', String(value).length);
+        return "*".repeat(String(value).length);
     }
     if (!value && value !== 0) {
         // previously, it returned 'false'. I don't know why.  But for the Pivot
@@ -282,8 +282,8 @@ function formatMany2one(value, field, options) {
             value = value.data.display_name || '';
         }
     }
-    if (options && options.escape) {
-        value = _.escape(value);
+    if (options?.escape) {
+        value = escape(value);
     }
     return value;
 }
@@ -373,7 +373,7 @@ function formatMonetary(value, field, options) {
     if (options.forceString) {
         return val.join(' ');
     }
-    return utils.Markup(val.map((v) => _.escape(v)).join(NBSP));
+    return utils.Markup(val.map((v) => escape(v)).join(NBSP));
 }
 /**
  * Returns a string representing the given value (multiplied by 100)
@@ -408,8 +408,8 @@ function formatSelection(value, field, options) {
         return '';
     }
     value = val[1];
-    if (options && options.escape) {
-        value = _.escape(value);
+    if (options?.escape) {
+        value = escape(value);
     }
     return value;
 }
@@ -575,8 +575,9 @@ function parseDateTime(value, field, options) {
  * @returns {float|NaN} the number value contained in the string representation
  */
 function parseNumber(value) {
+
     if (core._t.database.parameters.thousands_sep) {
-        var escapedSep = _.str.escapeRegExp(core._t.database.parameters.thousands_sep);
+        var escapedSep = escapeRegExp(core._t.database.parameters.thousands_sep);
         value = value.replace(new RegExp(escapedSep, 'g'), '');
     }
     if (core._t.database.parameters.decimal_point) {
@@ -735,7 +736,7 @@ function parseMany2one(value) {
             display_name: value[1],
         };
     }
-    if (Number.isFinite(value) || _.isString(value)) {
+    if (Number.isFinite(value) || typeof value === "string") {
         return {
             id: parseInt(value, 10),
         };
@@ -753,7 +754,7 @@ export default {
         float: formatFloat,
         float_factor: formatFloatFactor,
         float_time: formatFloatTime,
-        html: _.identity, // todo
+        html: (value) => value, // todo
         integer: formatInteger,
         many2many: formatX2Many,
         many2one: formatMany2one,
@@ -767,25 +768,25 @@ export default {
         json: formatJson,
     },
     parse: {
-        binary: _.identity,
-        boolean: _.identity, // todo
-        char: _.identity, // todo
+        binary: (value) => value,
+        boolean: (value) => value, // todo
+        char: (value) => value, // todo
         date: parseDate, // todo
         datetime: parseDateTime, // todo
         float: parseFloat,
         float_factor: parseFloatFactor,
         float_time: parseFloatTime,
-        html: _.identity, // todo
+        html: (value) => value, // todo
         integer: parseInteger,
-        many2many: _.identity, // todo
+        many2many: (value) => value, // todo
         many2one: parseMany2one,
         many2one_reference: parseInteger,
         monetary: parseMonetary,
-        one2many: _.identity,
+        one2many: (value) => value,
         percentage: parsePercentage,
         reference: parseMany2one,
-        selection: _.identity, // todo
-        text: _.identity, // todo
-        json: _.identity, // todo
+        selection: (value) => value, // todo
+        text: (value) => value, // todo
+        json: (value) => value, // todo
     },
 };
diff --git a/addons/web/static/src/legacy/js/fields/relational_fields.js b/addons/web/static/src/legacy/js/fields/relational_fields.js
index 0c7fa920777..9d11189800f 100644
--- a/addons/web/static/src/legacy/js/fields/relational_fields.js
+++ b/addons/web/static/src/legacy/js/fields/relational_fields.js
@@ -582,7 +582,7 @@ var FieldMany2One = AbstractField.extend({
      * @returns {string} escaped html of value lines
      */
     _renderValueLines: function (needFirstLine) {
-        const escapedValue = _.escape((this.m2o_value || "").trim());
+        const escapedValue = escape((this.m2o_value || "").trim());
         const lines = escapedValue.split('\n');
         if (!needFirstLine) {
             lines.shift();
@@ -1050,7 +1050,7 @@ var FieldMany2ManyTags = AbstractField.extend({
      * @returns {Promise}
      */
     _addTag: function (data) {
-        if (!_.contains(this.value.res_ids, data.id)) {
+        if (!this.value.res_ids.includes(data.id)) {
             return this._setValue({
                 operation: 'ADD_M2M',
                 ids: data
@@ -1076,7 +1076,7 @@ var FieldMany2ManyTags = AbstractField.extend({
      * @returns {Object}
      */
     _getRenderTagsContext: function () {
-        var elements = this.value ? _.pluck(this.value.data, 'data') : [];
+        var elements = this.value ? this.value.data.map((d) => d.data) : [];
         return {
             colorField: this.colorField,
             elements: elements,
@@ -1249,7 +1249,7 @@ const M2MAvatarMixin = {
             html: true,
             placement: 'auto',
             content: () => {
-                const elements = this.value ? _.pluck(this.value.data, 'data') : [];
+                const elements = this.value ? this.value.data.map((d) => d.data) : [];
                 return qweb.render('Many2ManyTagAvatarPopover', {
                     elements: elements.slice(this.visibleAvatarCount - 1),
                 });
diff --git a/addons/web/static/src/legacy/js/public/public_root.js b/addons/web/static/src/legacy/js/public/public_root.js
index ccbef75e350..5f77cbe6e58 100644
--- a/addons/web/static/src/legacy/js/public/public_root.js
+++ b/addons/web/static/src/legacy/js/public/public_root.js
@@ -251,7 +251,7 @@ export const PublicRoot = publicWidget.RootWidget.extend({
             args = args.concat(ev.target);
 
             var route = args[0];
-            if (_.str.startsWith(route, '/web/dataset/call_kw/')) {
+            if (String(route).startsWith("/web/dataset/call_kw/")) {
                 var params = args[1];
                 var options = args[2];
                 var noContextKeys;
diff --git a/addons/web/static/src/legacy/js/public/public_widget.js b/addons/web/static/src/legacy/js/public/public_widget.js
index 88b7943a1a2..4aefaa8793e 100644
--- a/addons/web/static/src/legacy/js/public/public_widget.js
+++ b/addons/web/static/src/legacy/js/public/public_widget.js
@@ -212,14 +212,14 @@ var PublicWidget = Widget.extend({
             }
             // If the method has no meaningful options, use the default Widget
             // system
-            var isAsync = _.contains(methodOptions, 'async');
+            var isAsync = methodOptions.includes('async');
             if (!isAsync) {
                 events[event] = method;
                 return;
             }
 
             method = self.proxy(methodOptions[methodOptions.length - 1]);
-            if (_.str.startsWith(event, 'click')) {
+            if (String(event).startsWith("click")) {
                 // Protect click handler to be called multiple times by
                 // mistake by the user and add a visual disabling effect
                 // for buttons.
diff --git a/addons/web/static/src/legacy/js/services/config.js b/addons/web/static/src/legacy/js/services/config.js
index d07ba6c9d2e..9d7c3d1bd52 100644
--- a/addons/web/static/src/legacy/js/services/config.js
+++ b/addons/web/static/src/legacy/js/services/config.js
@@ -114,7 +114,10 @@ function _updateSizeProps() {
     }
 }
 
-_.invoke(medias, 'addListener', _updateSizeProps);
+medias.forEach((media) => {
+    media.addListener(_updateSizeProps);
+});
+
 _updateSizeProps();
 
 export default config;
diff --git a/addons/web/static/src/legacy/js/views/basic/basic_model.js b/addons/web/static/src/legacy/js/views/basic/basic_model.js
index f7d197bcb15..5210fb17693 100644
--- a/addons/web/static/src/legacy/js/views/basic/basic_model.js
+++ b/addons/web/static/src/legacy/js/views/basic/basic_model.js
@@ -366,7 +366,7 @@ var BasicModel = AbstractModel.extend({
         return this._rpc({
                 model: modelName,
                 method: 'unlink',
-                args: [_.pluck(records, 'res_id')],
+                args: [records.map(r => r.res_id)],
                 context: context,
             })
             .then(function () {
@@ -908,7 +908,7 @@ var BasicModel = AbstractModel.extend({
                 // We only need to load the datapoint in the first case.
                 if (field.value && field.value.length) {
                     if (_.isObject(field.value[0])) {
-                        dpParams.res_ids = _.pluck(field.value, 'id');
+                        dpParams.res_ids = field.value.map((v) => v.id);
                         dataPoint = self._makeDataPoint(dpParams);
                         field.value.forEach((data) => {
                             var recordDP = self._makeDataPoint({
@@ -1298,7 +1298,7 @@ var BasicModel = AbstractModel.extend({
                 args: [resIDs],
             })
             .then(function (action) {
-                if (!_.isEmpty(action)) {
+                if (Object.keys(action || {}).length > 0) {
                     return new Promise(function (resolve, reject) {
                         self.do_action(action, {
                             on_close: function (result) {
@@ -1339,7 +1339,7 @@ var BasicModel = AbstractModel.extend({
             })
             .then(function (action) {
                 // optionally clear the DataManager's cache
-                if (!_.isEmpty(action)) {
+                if (Object.keys(action || {}).length > 0) {
                     return new Promise(function (resolve, reject) {
                         self.do_action(action, {
                             on_close: function () {
@@ -2013,7 +2013,7 @@ var BasicModel = AbstractModel.extend({
                     def = this._rpc({
                         model: list.model,
                         method: 'read',
-                        args: [_.pluck(data, 'id'), fieldNames],
+                        args: [data.map((d) => d.id), fieldNames],
                         context: Object.assign({}, record.context, field.context, list.getContext()),
                     }).then(function (records) {
                         records.forEach((record) => {
@@ -2895,7 +2895,7 @@ var BasicModel = AbstractModel.extend({
      */
     _fetchSpecialRelation: function (record, fieldName) {
         var field = record.fields[fieldName];
-        if (!_.contains(["many2one", "many2many", "one2many"], field.type)) {
+        if (!["many2one", "many2many", "one2many"].includes(field.type)) {
             return Promise.resolve();
         }
 
@@ -3318,7 +3318,7 @@ var BasicModel = AbstractModel.extend({
                 this._sortList(list);
                 if (type === 'many2many' || list._forceM2MLink) {
                     var relRecordCreated = relRecordAdded.filter(rec => typeof rec.res_id === 'string');
-                    var realIDs = _.difference(list.res_ids, _.pluck(relRecordCreated, 'res_id'));
+                    var realIDs = _.difference(list.res_ids, relRecordCreated.map(r => r.res_id));
                     // deliberately generate a single 'replace' command instead
                     // of a 'delete' and a 'link' commands with the exact diff
                     // because 1) performance-wise it doesn't change anything
@@ -3333,7 +3333,7 @@ var BasicModel = AbstractModel.extend({
                     // updated (it may happen with editable lists)
                     relRecordUpdated.forEach((relRecord) => {
                         var changes = self._generateChanges(relRecord, options);
-                        if (!_.isEmpty(changes)) {
+                        if (Object.keys(changes || {}).length > 0) {
                             var command = x2ManyCommands.update(relRecord.res_id, changes);
                             commands[fieldName].push(command);
                         }
@@ -3348,18 +3348,18 @@ var BasicModel = AbstractModel.extend({
                     var didChange = false;
                     var changes, command, relRecord;
                     for (var i = 0; i < list.res_ids.length; i++) {
-                        if (_.contains(keptIds, list.res_ids[i])) {
+                        if (keptIds.includes(list.res_ids[i])) {
                             // this is an id that already existed
                             relRecord = _.findWhere(relRecordUpdated, {res_id: list.res_ids[i]});
                             changes = relRecord ? this._generateChanges(relRecord, options) : {};
-                            if (!_.isEmpty(changes)) {
+                            if (Object.keys(changes || {}).length > 0) {
                                 command = x2ManyCommands.update(relRecord.res_id, changes);
                                 didChange = true;
                             } else {
                                 command = x2ManyCommands.link_to(list.res_ids[i]);
                             }
                             commands[fieldName].push(command);
-                        } else if (_.contains(addedIds, list.res_ids[i])) {
+                        } else if (addedIds.includes(list.res_ids[i])) {
                             // this is a new id (maybe existing in DB, but new in JS)
                             relRecord = _.findWhere(relRecordAdded, {res_id: list.res_ids[i]});
                             if (!relRecord) {
@@ -3443,7 +3443,7 @@ var BasicModel = AbstractModel.extend({
         if (options.full || !(options.fieldName || options.additionalContext)) {
             var context_to_add = options.sanitize_default_values ?
                 _.omit(element.context, function (val, key) {
-                    return _.str.startsWith(key, 'default_');
+                    return String(key).startsWith('default_');
                 })
                 : element.context;
             context.add(context_to_add);
@@ -4643,7 +4643,7 @@ var BasicModel = AbstractModel.extend({
                             });
                             r._changes[fieldName] = rec.id;
                             many2ones[fieldName] = true;
-                        } else if (_.contains(['one2many', 'many2many'], fieldType)) {
+                        } else if (['one2many', 'many2many'].includes(fieldType)) {
                             var x2mCommands = value[2][fieldName];
                             defs.push(self._processX2ManyCommands(r, fieldName, x2mCommands));
                         } else {
@@ -4799,7 +4799,7 @@ var BasicModel = AbstractModel.extend({
                 groups.forEach((group) => {
                     var aggregateValues = {};
                     for (const [key, value] of Object.entries(group)) {
-                        if (_.contains(fields, key) && key !== groupByField &&
+                        if (fields.includes(key) && key !== groupByField &&
                             AGGREGATABLE_TYPES.includes(list.fields[key].type)) {
                                 aggregateValues[key] = value;
                         }
@@ -4870,7 +4870,7 @@ var BasicModel = AbstractModel.extend({
                     // readGroup but are not there anymore.
                     // Note that these groups are put after existing groups so
                     // the order is not conserved. A sort *might* be useful.
-                    var emptyGroupsIDs = _.difference(_.pluck(previousGroups, 'id'), list.data);
+                    var emptyGroupsIDs = _.difference(previousGroups.map((group) => group.id), list.data);
                     emptyGroupsIDs.forEach((groupID) => {
                         list.data.push(groupID);
                         var emptyGroup = self.localData[groupID];
@@ -4884,9 +4884,9 @@ var BasicModel = AbstractModel.extend({
                     if (!options.onlyGroups) {
                         // generate the res_ids of the main list, being the concatenation
                         // of the fetched res_ids in each group
-                        list.res_ids = _.flatten(_.map(groups, function (group) {
+                        list.res_ids = _.map(groups, function (group) {
                             return group ? group.res_ids : [];
-                        }));
+                        }).flat();
                     }
                     return list;
                 }).then(function () {
@@ -4918,7 +4918,7 @@ var BasicModel = AbstractModel.extend({
         // order field first to apply the order on all pages
         if (list.res_ids.length > list.limit && list.orderedBy.length) {
             if (!list.orderedResIDs) {
-                var fieldNames = _.pluck(list.orderedBy, 'name');
+                var fieldNames = list.orderedBy.map((list) => list.name);
                 def = this._readMissingFields(list, list.res_ids.filter(id => Number.isFinite(id)), fieldNames, options.withoutRecordData);
             }
             def.then(function () {
@@ -5077,7 +5077,7 @@ var BasicModel = AbstractModel.extend({
      * @returns {boolean} false if the value was already the given one
      */
     _saveSpecialDataCache: function (record, fieldName, value) {
-        if (_.isEqual(record._specialDataCache[fieldName], value)) {
+        if (JSON.stringify(record._specialDataCache[fieldName]) === JSON.stringify(value)) {
             return false;
         }
         record._specialDataCache[fieldName] = value;
@@ -5121,7 +5121,7 @@ var BasicModel = AbstractModel.extend({
         return prom.then(function (result) {
             delete list.__data;
             list.count = result.length;
-            var ids = _.pluck(result.records, 'id');
+            var ids = result.records.map((r) => r.id);
             var data = _.map(result.records, function (record) {
                 var dataPoint = self._makeDataPoint({
                     context: list.context,
@@ -5291,9 +5291,9 @@ var BasicModel = AbstractModel.extend({
         var self = this;
         if (element.parentID) {
             var parent = this.localData[element.parentID];
-            parent.res_ids =  _.flatten(_.map(parent.data, function (dataPointID) {
+            parent.res_ids =  _.map(parent.data, function (dataPointID) {
                 return self.localData[dataPointID].res_ids;
-            }));
+            }).flat();
             this._updateParentResIDs(parent);
         }
     },
@@ -5395,7 +5395,7 @@ var BasicModel = AbstractModel.extend({
                 if (!field) {
                     continue;
                 }
-                if (_.contains(['one2many', 'many2one', 'many2many'], field.type)) {
+                if (['one2many', 'many2one', 'many2many'].includes(field.type)) {
                     var hasChange = element._changes && fieldName in element._changes;
                     var value =  hasChange ? element._changes[fieldName] : element.data[fieldName];
                     var relationalElement = this.localData[value];
diff --git a/addons/web/static/src/legacy/js/views/standalone_field_manager_mixin.js b/addons/web/static/src/legacy/js/views/standalone_field_manager_mixin.js
index b2f71e46912..cef759851c4 100644
--- a/addons/web/static/src/legacy/js/views/standalone_field_manager_mixin.js
+++ b/addons/web/static/src/legacy/js/views/standalone_field_manager_mixin.js
@@ -42,7 +42,7 @@ var StandaloneFieldManagerMixin = Object.assign({}, FieldManagerMixin, {
         var result = FieldManagerMixin._confirmChange.apply(this, arguments);
         var record = this.model.get(id);
         for (const [fieldName, widget] of Object.entries(this.registeredWidgets[id])) {
-            if (_.contains(fields, fieldName)) {
+            if (fields.includes(fieldName)) {
                 widget.reset(record, event);
             }
         }
diff --git a/addons/web/static/src/legacy/js/views/view_utils.js b/addons/web/static/src/legacy/js/views/view_utils.js
index b1a3b734330..d1bcdc38320 100644
--- a/addons/web/static/src/legacy/js/views/view_utils.js
+++ b/addons/web/static/src/legacy/js/views/view_utils.js
@@ -62,12 +62,12 @@ var viewUtils = {
         }
         var dateTypes = ['date', 'datetime'];
         if (!list.fields[groupByField].readonly &&
-            _.contains(dateTypes, list.fields[groupByField].type)) {
+            dateTypes.includes(list.fields[groupByField].type)) {
             return list.fieldsInfo && list.fieldsInfo[list.viewType][groupByField] &&
                 list.fieldsInfo[list.viewType][groupByField].allowGroupRangeValue;
         }
         var availableTypes = ['char', 'boolean', 'many2one', 'selection'];
-        return _.contains(availableTypes, list.fields[groupByField].type);
+        return availableTypes.includes(list.fields[groupByField].type);
     },
     /**
      * @param {string} arch view arch
diff --git a/addons/web/static/src/legacy/js/widgets/domain_selector.js b/addons/web/static/src/legacy/js/widgets/domain_selector.js
index 538992fde31..6b5feab4e32 100644
--- a/addons/web/static/src/legacy/js/widgets/domain_selector.js
+++ b/addons/web/static/src/legacy/js/widgets/domain_selector.js
@@ -694,7 +694,7 @@ var DomainLeaf = DomainNode.extend({
                 // Set list of operators according to field type
                 var selectedField = this.fieldSelector.getSelectedField() || {};
                 this.operators = this._getOperatorsFromType(selectedField.type);
-                if (_.contains(["child_of", "parent_of", "like", "not like", "=like", "=ilike"], this.operator)) {
+                if (["child_of", "parent_of", "like", "not like", "=like", "=ilike"].includes(this.operator)) {
                     // In case user entered manually or from demo data
                     this.operators[this.operator] = operator_mapping[this.operator];
                 } else if (!this.operators[this.operator]) {
@@ -726,7 +726,7 @@ var DomainLeaf = DomainNode.extend({
                 }
 
                 // TODO the value could be a m2o input, etc...
-                if (_.contains(["date", "datetime"], selectedField.type)) {
+                if (["date", "datetime"].includes(selectedField.type)) {
                     this.valueWidget = new (selectedField.type === "datetime" ? datepicker.DateTimeWidget : datepicker.DateWidget)(this);
                     wDefs.push(this.valueWidget.appendTo("<div/>").then((function () {
                         this.valueWidget.$el.addClass("o_domain_leaf_value_input");
@@ -821,10 +821,10 @@ var DomainLeaf = DomainNode.extend({
     _changeOperator: function (operator, silent) {
         this.operator = operator;
 
-        if (_.contains(["set", "not set"], this.operator)) {
+        if (["set", "not set"].includes(this.operator)) {
             this.operator = this.operator === "not set" ? "=" : "!=";
             this.value = false;
-        } else if (_.contains(["in", "not in"], this.operator)) {
+        } else if (["in", "not in"].includes(this.operator)) {
             this.value = Array.isArray(this.value) ? this.value : this.value ? ("" + this.value).split(",") : [];
         } else {
             if (Array.isArray(this.value)) {
@@ -857,22 +857,22 @@ var DomainLeaf = DomainNode.extend({
         }
 
         if (selectedField.type === "boolean") {
-            if (!_.isBoolean(this.value)) { // Convert boolean-like value to boolean
+            if (typeof this.value !== "boolean") { // Convert boolean-like value to boolean
                 this.value = !!parseFloat(this.value);
             }
         } else if (selectedField.type === "selection") {
             if (!_.some(selectedField.selection, (function (option) { return option[0] === this.value; }).bind(this))) {
                 this.value = selectedField.selection[0][0];
             }
-        } else if (_.contains(["date", "datetime"], selectedField.type)) {
-            if (couldNotParse || _.isBoolean(this.value)) {
+        } else if (["date", "datetime"].includes(selectedField.type)) {
+            if (couldNotParse || typeof this.value === "boolean") {
                 this.value = field_utils.parse[selectedField.type](field_utils.format[selectedField.type](moment())).toJSON(); // toJSON to get date with server format
             } else {
                 this.value = this.value.toJSON(); // toJSON to get date with server format
             }
         } else {
             // Never display "true" or "false" strings from boolean value
-            if (_.isBoolean(this.value)) {
+            if (typeof this.value === "boolean") {
                 this.value = "";
             } else if (_.isObject(this.value) && !Array.isArray(this.value)) { // Can be object if parsed to x2x representation
                 this.value = this.value.id || value || "";
@@ -975,7 +975,7 @@ var DomainLeaf = DomainNode.extend({
     // TODO The two following functions should be in an independant widget
     on_add_tag: function (e) {
         if (e.type === "keyup" && e.which !== $.ui.keyCode.ENTER) return;
-        if (!_.contains(["not in", "in"], this.operator)) return;
+        if (!["not in", "in"].includes(this.operator)) return;
 
         var values = Array.isArray(this.value) ? this.value.slice() : [];
 
diff --git a/addons/web/static/src/legacy/js/widgets/model_field_selector_popover.js b/addons/web/static/src/legacy/js/widgets/model_field_selector_popover.js
index 85c0a77a170..5019229fd41 100644
--- a/addons/web/static/src/legacy/js/widgets/model_field_selector_popover.js
+++ b/addons/web/static/src/legacy/js/widgets/model_field_selector_popover.js
@@ -158,7 +158,7 @@ var ModelFieldSelectorPopover = Widget.extend({
      * @returns {Promise} resolved once the re-rendering is finished
      */
     setChain: function (chain) {
-        if (_.isEqual(chain, this.chain)) {
+        if (JSON.stringify(chain) === JSON.stringify(this.chain)) {
             return Promise.resolve();
         }
 
@@ -284,7 +284,7 @@ var ModelFieldSelectorPopover = Widget.extend({
      * @param {Object} field - the field to add to the chain node
      */
     _goToNextPage: function (field) {
-        if (!_.isEqual(this._getLastPageField(field.name), field)) return;
+        if (JSON.stringify(this._getLastPageField(field.name)) !== JSON.stringify(field)) return;
 
         this._validate(true);
         this._addChainNode(field.name);
@@ -489,7 +489,7 @@ var ModelFieldSelectorPopover = Widget.extend({
      * @param {Object} field - the field to select
      */
     _selectField: function (field) {
-        if (!_.isEqual(this._getLastPageField(field.name), field)) return;
+        if (JSON.stringify(this._getLastPageField(field.name)) !== JSON.stringify(field)) return;
 
         this._validate(true);
         this._addChainNode(field.name);
diff --git a/addons/web/static/src/legacy/js/widgets/name_and_signature.js b/addons/web/static/src/legacy/js/widgets/name_and_signature.js
index a7a97ea6088..ce3a14a4e36 100644
--- a/addons/web/static/src/legacy/js/widgets/name_and_signature.js
+++ b/addons/web/static/src/legacy/js/widgets/name_and_signature.js
@@ -4,6 +4,7 @@ import core from "web.core";
 import config from "web.config";
 import utils from "web.utils";
 import Widget from "web.Widget";
+import { debounce } from "@web/core/utils/timing";
 
 
 /**
@@ -147,7 +148,7 @@ var NameAndSignature = Widget.extend({
         }
 
         // Resize the signature area if it is resized
-        $(window).on('resize.o_web_sign_name_and_signature', _.debounce(function () {
+        $(window).on('resize.o_web_sign_name_and_signature', debounce(function () {
             if (self.isDestroyed()) {
                 // May happen since this is debounced
                 return;
diff --git a/addons/web/static/tests/core/utils/numbers_test.js b/addons/web/static/tests/core/utils/numbers_test.js
new file mode 100644
index 00000000000..6c43f4b680f
--- /dev/null
+++ b/addons/web/static/tests/core/utils/numbers_test.js
@@ -0,0 +1,15 @@
+/** @odoo-module **/
+
+import { range } from "@web/core/utils/numbers";
+
+QUnit.module("utils", () => {
+    QUnit.module("Numbers", () => {
+        QUnit.test("test range function from core/utils/numbers.js", (assert) => {
+            assert.deepEqual(range(0, 10), [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]);
+            assert.deepEqual(range(0, -10, -1), [0, -1, -2, -3, -4, -5, -6, -7, -8, -9]);
+            assert.deepEqual(range(0, 35, 5), [0, 5, 10, 15, 20, 25, 30]);
+            assert.deepEqual(range(-10, 6, 2), [-10, -8, -6, -4, -2, 0, 2, 4]);
+            assert.deepEqual(range(4, -4, -1), [4, 3, 2, 1, 0, -1, -2, -3]);
+        });
+    });
+});
diff --git a/addons/web/static/tests/helpers/mock_server.js b/addons/web/static/tests/helpers/mock_server.js
index 32a160d98af..25401329923 100644
--- a/addons/web/static/tests/helpers/mock_server.js
+++ b/addons/web/static/tests/helpers/mock_server.js
@@ -544,7 +544,8 @@ export class MockServer {
                                 item.includes("readonly")
                             ))) &&
                     (!["1", "True"].includes(node.getAttribute("readonly")) ||
-                        !_.isEmpty(evaluateExpr(node.getAttribute("attrs") || "{}")))
+                        Object.keys(evaluateExpr(node.getAttribute("attrs") || "{}") || {}).length >
+                            0)
                 );
             }
             default:
@@ -1275,7 +1276,7 @@ export class MockServer {
                     group.__domain = [[fieldName, "=", value]].concat(group.__domain);
                 }
             }
-            if (_.isEmpty(group.__range)) {
+            if (Object.keys(group.__range || {}).length === 0) {
                 delete group.__range;
             }
             // compute count key to match dumb server logic...
diff --git a/addons/web/static/tests/legacy/control_panel/filter_menu_tests.js b/addons/web/static/tests/legacy/control_panel/filter_menu_tests.js
index 1b674d7ad6f..e6a2a267cac 100644
--- a/addons/web/static/tests/legacy/control_panel/filter_menu_tests.js
+++ b/addons/web/static/tests/legacy/control_panel/filter_menu_tests.js
@@ -5,6 +5,7 @@
     import testUtils from "web.test_utils";
 
     import * as cpHelpers from "@web/../tests/search/helpers";
+    
     const { createControlPanel, mock } = testUtils;
     const { patchDate } = mock;
 
diff --git a/addons/web/static/tests/legacy/core/time_tests.js b/addons/web/static/tests/legacy/core/time_tests.js
index c04afb3c430..e4b5bb6ed75 100644
--- a/addons/web/static/tests/legacy/core/time_tests.js
+++ b/addons/web/static/tests/legacy/core/time_tests.js
@@ -40,7 +40,7 @@ QUnit.module('core', {}, function () {
 
         try {
             window.Date = function (v) {
-                if (_.isUndefined(v)) {
+                if (typeof v === "undefined") {
                     v = '2013-10-31 12:34:56';
                 }
                 return new wDate(v);
@@ -73,7 +73,7 @@ QUnit.module('core', {}, function () {
 
         try {
             window.Date = function (v) {
-                if (_.isUndefined(v)) {
+                if (typeof v === "undefined") {
                     v = '2013-10-31 12:34:56';
                 }
                 return new wDate(v);
diff --git a/addons/web/static/tests/legacy/core/widget_tests.js b/addons/web/static/tests/legacy/core/widget_tests.js
index ff72083602b..b14f608d987 100644
--- a/addons/web/static/tests/legacy/core/widget_tests.js
+++ b/addons/web/static/tests/legacy/core/widget_tests.js
@@ -100,7 +100,7 @@ QUnit.module('core', {}, function () {
 
         assert.strictEqual(widget.el.nodeName, 'DIV', "should have generated the default element");
         assert.strictEqual(widget.el.attributes.length, 0, "should not have generated any attribute");
-        assert.ok(_.isEmpty(widget.$el.html(), "should not have generated any content"));
+        assert.ok(Object.keys(widget.$el.html() || {}).length === 0, "should not have generated any content");
         widget.destroy();
     });
 
diff --git a/addons/web/static/tests/legacy/helpers/mock_server.js b/addons/web/static/tests/legacy/helpers/mock_server.js
index b5cbe83299a..e33c5045455 100644
--- a/addons/web/static/tests/legacy/helpers/mock_server.js
+++ b/addons/web/static/tests/legacy/helpers/mock_server.js
@@ -216,7 +216,7 @@ var MockServer = Class.extend({
                 if ('default' in model.fields[fieldName]) {
                     const def = model.fields[fieldName].default;
                     record[fieldName] = typeof def === 'function' ? def.call(this) : def;
-                } else if (_.contains(['one2many', 'many2many'], model.fields[fieldName].type)) {
+                } else if (["one2many", "many2many"].includes(model.fields[fieldName].type)) {
                     record[fieldName] = [];
                 } else {
                     record[fieldName] = false;
@@ -1254,7 +1254,7 @@ var MockServer = Class.extend({
             ids = [ids];
         }
         var records = this.data[model].records;
-        var names = _.map(ids, function (id) {
+        var names = ids.map(id => {
             return id ? [id, _.findWhere(records, {id: id}).display_name] : [null, ""];
         });
         return names;
@@ -1299,7 +1299,7 @@ var MockServer = Class.extend({
         if (str.length) {
             records = records.filter(record => record.display_name.indexOf(str) !== -1);
         }
-        var result = _.map(records, function (record) {
+        var result = records.map(record => {
             return [record.id, record.display_name];
         });
         return result.slice(0, limit);
@@ -1471,8 +1471,8 @@ var MockServer = Class.extend({
         });
 
         // filter out non existing fields
-        aggregatedFields = aggregatedFields.filter(name => {
-            return name in self.data[model].fields && !(_.contains(groupByFieldNames,name));
+        aggregatedFields = aggregatedFields.filter((name) => {
+            return name in self.data[model].fields && !groupByFieldNames.includes(name);
         });
 
         function aggregateFields(group, records) {
@@ -1487,7 +1487,7 @@ var MockServer = Class.extend({
                     }
                 }
                 if (type === 'many2one') {
-                    var ids = _.pluck(records, aggregatedFields[i]);
+                    var ids = records.map((record) => aggregatedFields[i]);
                     group[aggregatedFields[i]] = _.uniq(ids).length || null;
                 }
             }
@@ -1657,7 +1657,7 @@ var MockServer = Class.extend({
                     group.__domain = [[fieldName, "=", value]].concat(group.__domain);
                 }
             }
-            if (_.isEmpty(group.__range)) {
+            if (Object.keys(group.__range || {}).length === 0) {
                 delete group.__range;
             }
             // compute count key to match dumb server logic...
@@ -1869,7 +1869,9 @@ var MockServer = Class.extend({
         if (!Array.isArray(ids)) {
             ids = [ids];
         }
-        this.data[model].records = this.data[model].records.filter(record => !_.contains(ids, record.id));
+        this.data[model].records = this.data[model].records.filter(
+            (record) => !ids.includes(record.id)
+        );
 
         // update value of relationnal fields pointing to the deleted records
         Object.values(this.data).forEach((d) => {
@@ -1995,7 +1997,10 @@ var MockServer = Class.extend({
             case '/web/dataset/resequence':
                 return this._mockResequence(args);
         }
-        if (route.indexOf('/web/image') >= 0 || _.contains(['.png', '.jpg'], route.substr(route.length - 4))) {
+        if (
+            route.indexOf("/web/image") >= 0 ||
+            [".png", ".jpg"].includes(route.substr(route.length - 4))
+        ) {
             return;
         }
         switch (args.method) {
@@ -2204,7 +2209,7 @@ var MockServer = Class.extend({
             if (!field) {
                 throw Error(`Mock: Can't write value "${JSON.stringify(value)}" on field "${field_changed}" on record "${model},${id}" (field is undefined)`);
             }
-            if (_.contains(['one2many', 'many2many'], field.type)) {
+            if (["one2many", "many2many"].includes(field.type)) {
                 var ids = _.clone(record[field_changed]) || [];
 
                 if (
@@ -2234,7 +2239,7 @@ var MockServer = Class.extend({
                     } else if (command[0] === 3) { // FORGET
                         ids = _.without(ids, command[1]);
                     } else if (command[0] === 4) { // LINK_TO
-                        if (!_.contains(ids, command[1])) {
+                        if (!ids.includes(command[1])) {
                             ids.push(command[1]);
                         }
                     } else if (command[0] === 5) { // DELETE ALL
diff --git a/addons/web/static/tests/legacy/qweb_tests.js b/addons/web/static/tests/legacy/qweb_tests.js
index 044eb613b32..7c3c5cd768d 100644
--- a/addons/web/static/tests/legacy/qweb_tests.js
+++ b/addons/web/static/tests/legacy/qweb_tests.js
@@ -4,6 +4,7 @@ import {Markup} from "web.utils";
 
 var qwebPath = '/web/static/lib/qweb/';
 import {hushConsole} from "@web/../tests/helpers/utils";
+import { escape } from "@web/core/utils/strings";
 
 function trim(s) {
     return s.replace(/(^\s+|\s+$)/g, '');
@@ -114,13 +115,13 @@ QUnit.module('QWeb', {
     QUnit.test('escape', assert => {
         // not strictly about qweb...
         assert.expect(8);
-        assert.equal(_.escape('a'), 'a');
-        assert.equal(_.escape('<a>'), '&lt;a&gt;');
+        assert.equal(escape('a'), 'a');
+        assert.equal(escape('<a>'), '&lt;a&gt;');
         assert.equal(_.escape({[_.escapeMethod]() { return 'a'; }}), 'a');
         assert.equal(_.escape({[_.escapeMethod]() { return '<a>'; }}), '<a>');
-        assert.equal(_.escape(Markup('a')), 'a');
+        assert.equal(escape(Markup('a')), 'a');
         assert.equal(_.escape(Markup('<a>')), '<a>');
-        assert.equal(_.escape(Markup`a`), 'a');
+        assert.equal(escape(Markup`a`), 'a');
         assert.equal(_.escape(Markup`<a>`), '<a>');
     });
     QUnit.module('t-out', {}, () => {
diff --git a/addons/web/static/tests/legacy/views/basic_model_tests.js b/addons/web/static/tests/legacy/views/basic_model_tests.js
index 41608d6be1b..0cbfd98d8d8 100644
--- a/addons/web/static/tests/legacy/views/basic_model_tests.js
+++ b/addons/web/static/tests/legacy/views/basic_model_tests.js
@@ -1374,7 +1374,7 @@
 
             await model.load(params).then(function (resultID) {
                 var record = model.get(resultID);
-                assert.ok(_.isEqual(record.data.category.res_ids, [12, 14]),
+                assert.ok(JSON.stringify(record.data.category.res_ids) === JSON.stringify([12, 14]),
                     "category field should have correct default value");
             });
 
diff --git a/addons/web/static/tests/qunit.js b/addons/web/static/tests/qunit.js
index 28d76587167..4a461b047cf 100644
--- a/addons/web/static/tests/qunit.js
+++ b/addons/web/static/tests/qunit.js
@@ -8,6 +8,7 @@ import {
     fullAnnotatedTraceback,
 } from "@web/core/errors/error_utils";
 import { registry } from "@web/core/registry";
+import { escape } from "@web/core/utils/strings";
 
 function setQUnitDebugMode() {
     owl.whenReady(() => document.body.classList.add("debug")); // make the test visible to the naked eye
@@ -263,15 +264,15 @@ export function setupQUnit() {
             modulesAlert.classList.toggle("alert-info");
             let error = "Some modules couldn't be started:<ul>";
             if (info.failed.length) {
-                const failedList = info.failed.map((mod) => "<li>" + _.escape(mod) + "</li>");
+                const failedList = info.failed.map((mod) => "<li>" + escape(mod) + "</li>");
                 error += `<li> Failed modules: <ul>${failedList.join("")}</ul> </li>`;
             }
             if (info.missing.length) {
-                const missingList = info.missing.map((mod) => "<li>" + _.escape(mod) + "</li>");
+                const missingList = info.missing.map((mod) => "<li>" + escape(mod) + "</li>");
                 error += `<li> Missing dependencies: <ul>${missingList.join("")}</ul> </li>`;
             }
             if (info.unloaded.length) {
-                const unloadedList = info.unloaded.map((mod) => "<li>" + _.escape(mod) + "</li>");
+                const unloadedList = info.unloaded.map((mod) => "<li>" + escape(mod) + "</li>");
                 error += `
                     <li> Non loaded modules due to missing dependencies:
                         <ul>${unloadedList.join("")}</ul>
diff --git a/addons/web/static/tests/views/fields/many2many_field_tests.js b/addons/web/static/tests/views/fields/many2many_field_tests.js
index 8b66bae6d63..19a2d109c85 100644
--- a/addons/web/static/tests/views/fields/many2many_field_tests.js
+++ b/addons/web/static/tests/views/fields/many2many_field_tests.js
@@ -286,7 +286,8 @@ QUnit.module("Fields", (hooks) => {
                     });
                     var ids = _.sortBy([12, 15, 18].concat(createdType.id), _.identity.bind(_));
                     assert.ok(
-                        _.isEqual(_.sortBy(commands[0][2], _.identity.bind(_)), ids),
+                        JSON.stringify(_.sortBy(commands[0][2], _.identity.bind(_))) ===
+                            JSON.stringify(ids),
                         "new value should be " + ids
                     );
                 }
diff --git a/addons/web/static/tests/views/fields/many2many_tags_field_tests.js b/addons/web/static/tests/views/fields/many2many_tags_field_tests.js
index 55c29168685..ca7ab85d064 100644
--- a/addons/web/static/tests/views/fields/many2many_tags_field_tests.js
+++ b/addons/web/static/tests/views/fields/many2many_tags_field_tests.js
@@ -481,7 +481,10 @@ QUnit.module("Fields", (hooks) => {
                         6,
                         "generated command should be REPLACE WITH"
                     );
-                    assert.ok(_.isEqual(commands[0][2], [12]), "new value should be [12]");
+                    assert.ok(
+                        JSON.stringify(commands[0][2]) === JSON.stringify([12]),
+                        "new value should be [12]"
+                    );
                 }
             },
         });
diff --git a/addons/web/static/tests/views/fields/percent_pie_field_tests.js b/addons/web/static/tests/views/fields/percent_pie_field_tests.js
index 91cb25074e1..1a8aa489573 100644
--- a/addons/web/static/tests/views/fields/percent_pie_field_tests.js
+++ b/addons/web/static/tests/views/fields/percent_pie_field_tests.js
@@ -93,19 +93,17 @@ QUnit.module("Fields", (hooks) => {
             "should have 10% as pie value since int_field=10"
         );
         assert.ok(
-            _.str.include(
+            String(
                 target.querySelector(".o_field_percent_pie.o_field_widget .o_pie .o_mask").style
-                    .transform,
-                "rotate(180deg)"
-            ),
+                    .transform
+            ).includes("rotate(180deg)"),
             "left mask should be covering the whole left side of the pie"
         );
         assert.ok(
-            _.str.include(
+            String(
                 target.querySelectorAll(".o_field_percent_pie.o_field_widget .o_pie .o_mask")[1]
-                    .style.transform,
-                "rotate(36deg)"
-            ),
+                    .style.transform
+            ).includes("rotate(36deg)"),
             "right mask should be rotated from 360*(10/100) = 36 degrees"
         );
 
@@ -162,11 +160,10 @@ QUnit.module("Fields", (hooks) => {
             "should have 80% as pie value since int_field=80"
         );
         assert.ok(
-            _.str.include(
+            String(
                 target.querySelector(".o_field_percent_pie.o_field_widget .o_pie .o_mask").style
-                    .transform,
-                "rotate(288deg)"
-            ),
+                    .transform
+            ).includes("rotate(288deg)"),
             "left mask should be rotated from 360*(80/100) = 288 degrees"
         );
         assert.hasClass(
diff --git a/addons/web_editor/static/src/js/backend/convert_inline.js b/addons/web_editor/static/src/js/backend/convert_inline.js
index 2d11ead61c8..3b93c1dc876 100644
--- a/addons/web_editor/static/src/js/backend/convert_inline.js
+++ b/addons/web_editor/static/src/js/backend/convert_inline.js
@@ -391,7 +391,7 @@ function classToStyle($editable, cssRules) {
                 style = `${key}:${value};${style}`;
             }
         };
-        if (_.isEmpty(style)) {
+        if (Object.keys(style || {}).length === 0) {
             writes.push(() => { node.removeAttribute('style'); });
         } else {
             writes.push(() => {
@@ -1371,7 +1371,12 @@ function _normalizeStyle(style) {
     const normalizedStyle = {};
     for (const styleName of style) {
         const value = style[styleName];
-        if (value && !styleName.includes('animation') && !styleName.includes('-webkit') && _.isString(value)) {
+        if (
+            value &&
+            !styleName.includes("animation") &&
+            !styleName.includes("-webkit") &&
+            typeof value === "string"
+        ) {
             const normalizedStyleName = styleName.replace(/-(.)/g, (a, b) => b.toUpperCase());
             normalizedStyle[styleName] = style[normalizedStyleName];
             if (style.getPropertyPriority(styleName) === 'important') {
diff --git a/addons/web_editor/static/src/js/backend/html_field.js b/addons/web_editor/static/src/js/backend/html_field.js
index 0f002da5bb5..35b0379ad28 100644
--- a/addons/web_editor/static/src/js/backend/html_field.js
+++ b/addons/web_editor/static/src/js/backend/html_field.js
@@ -62,8 +62,9 @@ export class HtmlFieldWysiwygAdapterComponent extends ComponentAdapter {
                 stripHistoryIds(newValue) !== stripHistoryIds(newProps.editingValue) &&
                 stripHistoryIds(lastValue) !== stripHistoryIds(newValue)
             ) ||
-            !_.isEqual(lastRecordInfo, newRecordInfo) ||
-            !_.isEqual(lastCollaborationChannel, newCollaborationChannel))
+            JSON.stringify(lastRecordInfo) !== JSON.stringify(newRecordInfo) ||
+            JSON.stringify(lastCollaborationChannel) !== JSON.stringify(newCollaborationChannel)
+            )
         {
             this.widget.resetEditor(newValue, newProps.widgetArgs[0]);
             this.env.onWysiwygReset && this.env.onWysiwygReset();
@@ -132,7 +133,7 @@ export class HtmlField extends Component {
                 res_model: newProps.record.resModel,
                 res_id: newProps.record.resId,
             };
-            if (!_.isEqual(this._lastRecordInfo, newRecordInfo)) {
+            if (JSON.stringify(this._lastRecordInfo) !== JSON.stringify(newRecordInfo)) {
                 this.currentEditingValue = undefined;
             }
             this._lastRecordInfo = newRecordInfo;
diff --git a/addons/web_editor/static/src/js/common/ace.js b/addons/web_editor/static/src/js/common/ace.js
index ab1583929a7..c69d795de2c 100644
--- a/addons/web_editor/static/src/js/common/ace.js
+++ b/addons/web_editor/static/src/js/common/ace.js
@@ -8,6 +8,7 @@ import Dialog from "web.Dialog";
 import Widget from "web.Widget";
 import localStorage from "web.local_storage";
 import { sprintf } from "@web/core/utils/strings";
+import { debounce } from "@web/core/utils/timing";
 
 var _t = core._t;
 
@@ -110,10 +111,10 @@ var checkSCSS = (function () {
     return function (scss) {
         var stack = [];
         var line = 1;
-        for (var i = 0 ; i < scss.length ; i++) {
-            if (_.contains(openings, scss[i])) {
+        for (var i = 0; i < scss.length; i++) {
+            if (openings.includes(scss[i])) {
                 stack.push(scss[i]);
-            } else if (_.contains(closings, scss[i])) {
+            } else if (closings.includes(scss[i])) {
                 if (stack.pop() !== mapping[scss[i]]) {
                     return _getCheckReturn(false, line, _t("Unexpected ") + scss[i]);
                 }
@@ -254,7 +255,7 @@ var ViewEditor = Widget.extend({
         var refX = 0;
         var resizing = false;
         var minWidth = 400;
-        var debounceStoreEditorWidth = _.debounce(storeEditorWidth, 500);
+        var debounceStoreEditorWidth = debounce(storeEditorWidth, 500);
 
         this._updateViewSelectDOM();
 
@@ -262,8 +263,8 @@ var ViewEditor = Widget.extend({
         var initType;
         if (this.options.initialResID) {
             initResID = this.options.initialResID;
-            if (_.isString(initResID) && initResID[0] === '/') {
-                if (_.str.endsWith(initResID, '.scss')) {
+            if (typeof initResID === "string" && initResID[0] === '/') {
+                if (initResID.endsWith(".scss")) {
                     initType = 'scss';
                 } else {
                     initType = 'js';
@@ -739,7 +740,7 @@ var ViewEditor = Widget.extend({
         } else {
             var onChangeSession = (function () {
                 this.aceEditor.off('changeSession', onChangeSession);
-                _.delay(__showErrorLine.bind(this, line), 400);
+                setTimeout(__showErrorLine.bind(this, line), 400);
             }).bind(this);
             this.aceEditor.on('changeSession', onChangeSession);
             this._displayResource(resID, this.currentType);
@@ -799,7 +800,7 @@ var ViewEditor = Widget.extend({
             this.errorSession = this.aceEditor.getSession();
             this.errorSessionChangeCallback = __restore.bind(this);
             this.errorSession.on('change', this.errorSessionChangeCallback);
-            this.errorSessionScrollCallback = _.debounce(__updateErrorLineDisplay.bind(this, line), 10);
+            this.errorSessionScrollCallback = debounce(__updateErrorLineDisplay.bind(this, line), 10);
             this.errorSession.on('changeScrollTop', this.errorSessionScrollCallback);
 
             __updateErrorLineDisplay.call(this, line);
diff --git a/addons/web_editor/static/src/js/editor/snippets.editor.js b/addons/web_editor/static/src/js/editor/snippets.editor.js
index 677c76dce40..f0fdf84c8fa 100644
--- a/addons/web_editor/static/src/js/editor/snippets.editor.js
+++ b/addons/web_editor/static/src/js/editor/snippets.editor.js
@@ -11,9 +11,10 @@ import {ColorPaletteWidget} from "web_editor.ColorPalette";
 import SmoothScrollOnDrag from "web.smooth_scroll_on_drag";
 import {getCSSVariableValue} from "web_editor.utils";
 import * as gridUtils from "@web_editor/js/common/grid_layout_utils";
-import { sprintf } from "@web/core/utils/strings";
+import { sprintf, escape } from "@web/core/utils/strings";
 const QWeb = core.qweb;
 import {closestElement} from "@web_editor/js/editor/odoo-editor/src/utils/utils";
+import { debounce } from "@web/core/utils/timing";
 
 var _t = core._t;
 
@@ -23,7 +24,7 @@ let cacheSnippetTemplate = {};
 $.extend($.expr[':'], {
     o_editable: function (node, i, m) {
         while (node) {
-            if (node.className && _.isString(node.className)) {
+            if (node.className && typeof node.className === "string") {
                 if (node.className.indexOf('o_not_editable') !== -1) {
                     return false;
                 }
@@ -2011,7 +2012,7 @@ var SnippetsMenu = Widget.extend({
             const range = selection.getRangeAt(0);
             $(range.startContainer).closest('.o_default_snippet_text').removeClass('o_default_snippet_text');
         });
-        const refreshSnippetEditors = _.debounce(() => {
+        const refreshSnippetEditors = debounce(() => {
             for (const snippetEditor of this.snippetEditors) {
                 this._mutex.exec(() => snippetEditor.destroy());
             }
@@ -2042,7 +2043,7 @@ var SnippetsMenu = Widget.extend({
                 this.options.wysiwyg.odooEditor.addEventListener('observerApply', () => {
                     $(this.options.wysiwyg.odooEditor.editable).trigger('content_changed');
                 });
-                this.options.wysiwyg.odooEditor.addEventListener('historyRevert', _.debounce(() => {
+                this.options.wysiwyg.odooEditor.addEventListener('historyRevert', debounce(() => {
                     this.trigger_up('widgets_start_request', {
                         $target: this.options.wysiwyg.$editable,
                         editableMode: true,
@@ -2878,8 +2879,8 @@ var SnippetsMenu = Widget.extend({
             .addClass('oe_snippet')
             .each((i, el) => {
                 const $snippet = $(el);
-                const name = _.escape(el.getAttribute('name'));
-                const thumbnailSrc = _.escape(el.dataset.oeThumbnail);
+                const name = escape(el.getAttribute('name'));
+                const thumbnailSrc = escape(el.dataset.oeThumbnail);
                 const $sbody = $snippet.children().addClass('oe_snippet_body');
                 const isCustomSnippet = !!el.closest('#snippet_custom');
 
diff --git a/addons/web_editor/static/src/js/editor/snippets.options.js b/addons/web_editor/static/src/js/editor/snippets.options.js
index bb6c400c5d6..7d985db529b 100644
--- a/addons/web_editor/static/src/js/editor/snippets.options.js
+++ b/addons/web_editor/static/src/js/editor/snippets.options.js
@@ -34,6 +34,7 @@ import {
 import * as OdooEditorLib from "@web_editor/js/editor/odoo-editor/src/OdooEditor";
 import {SIZES, MEDIAS_BREAKPOINTS} from "@web/core/ui/ui_service";
 import { sprintf } from "@web/core/utils/strings";
+import { debounce } from "@web/core/utils/timing";
 
 var qweb = core.qweb;
 var _t = core._t;
@@ -2370,7 +2371,7 @@ const RangeUserValueWidget = UnitUserValueWidget.extend({
             this.containerEl.appendChild(this.outputEl);
         }
 
-        this._onInputChange = _.debounce(this._onInputChange, 100);
+        this._onInputChange = debounce(this._onInputChange, 100);
     },
 
     //--------------------------------------------------------------------------
@@ -4767,8 +4768,8 @@ registry['sizing_x'] = registry.sizing.extend({
         var gridE = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12];
         var gridW = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11];
         this.grid = {
-            e: [_.map(gridE, v => ('col-lg-' + v)), _.map(gridE, v => width / 12 * v), 'width'],
-            w: [_.map(gridW, v => ('offset-lg-' + v)), _.map(gridW, v => width / 12 * v), 'margin-left'],
+            e: [gridE.map(v => ('col-lg-' + v)), gridE.map(v => width / 12 * v), 'width'],
+            w: [gridW.map(v => ('offset-lg-' + v)), gridW.map(v => width / 12 * v), 'margin-left'],
         };
         return this.grid;
     },
@@ -4847,10 +4848,10 @@ registry['sizing_grid'] = registry.sizing.extend({
         const gridE = [2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13];
 
         this.grid = {
-            n: [_.map(gridN, v => ('g-height-' + (rowEnd - v))), _.map(gridN, v => ((gridProp.rowSize + gridProp.rowGap) * (v - 1))), 'grid-row-start'],
-            s: [_.map(gridS, v => ('g-height-' + (v - rowStart))), _.map(gridS, v => ((gridProp.rowSize + gridProp.rowGap) * (v - 1))), 'grid-row-end'],
-            w: [_.map(gridW, v => ('g-col-lg-' + (columnEnd - v))), _.map(gridW, v => ((gridProp.columnSize + gridProp.columnGap) * (v - 1))), 'grid-column-start'],
-            e: [_.map(gridE, v => ('g-col-lg-' + (v - columnStart))), _.map(gridE, v => ((gridProp.columnSize + gridProp.columnGap) * (v - 1))), 'grid-column-end'],
+            n: [gridN.map(v => ('g-height-' + (rowEnd - v))), gridN.map(v => ((gridProp.rowSize + gridProp.rowGap) * (v - 1))), 'grid-row-start'],
+            s: [gridS.map(v => ('g-height-' + (v - rowStart))), gridS.map(v => ((gridProp.rowSize + gridProp.rowGap) * (v - 1))), 'grid-row-end'],
+            w: [gridW.map(v => ('g-col-lg-' + (columnEnd - v))), gridW.map(v => ((gridProp.columnSize + gridProp.columnGap) * (v - 1))), 'grid-column-start'],
+            e: [gridE.map(v => ('g-col-lg-' + (v - columnStart))), gridE.map(v => ((gridProp.columnSize + gridProp.columnGap) * (v - 1))), 'grid-column-end'],
         };
 
         return this.grid;
diff --git a/addons/web_editor/static/src/js/wysiwyg/fonts.js b/addons/web_editor/static/src/js/wysiwyg/fonts.js
index 858f71887c9..7f8f389422d 100644
--- a/addons/web_editor/static/src/js/wysiwyg/fonts.js
+++ b/addons/web_editor/static/src/js/wysiwyg/fonts.js
@@ -90,7 +90,7 @@ export default {
         var self = this;
         this.fontIcons.forEach((data) => {
             data.cssData = self.getCssSelectors(data.parser);
-            data.alias = _.flatten(_.map(data.cssData, _.property('names')));
+            data.alias = _.map(data.cssData, _.property('names')).flat();
         });
     }),
 };
diff --git a/addons/web_editor/static/tests/test_utils.js b/addons/web_editor/static/tests/test_utils.js
index 6d809c86d64..1d42c50103b 100644
--- a/addons/web_editor/static/tests/test_utils.js
+++ b/addons/web_editor/static/tests/test_utils.js
@@ -386,10 +386,10 @@ range(40, 127).forEach((keyCode) => {
  * @param {Number} addTests
  */
 var testKeyboard = function ($editable, assert, keyboardTests, addTests) {
-    var tests = _.compact(_.pluck(keyboardTests, 'test'));
-    var testNumber = _.compact(_.pluck(tests, 'start')).length +
-        _.compact(_.pluck(tests, 'content')).length +
-        _.compact(_.pluck(tests, 'check')).length +
+    var tests = _.compact(keyboardTests.map((k) => k.test));
+    var testNumber = _.compact(tests.map((test) => test.start)).length +
+        _.compact(tests.map((test) => test.content)).length +
+        _.compact(tests.map((test) => test.check)).length +
         (addTests | 0);
     assert.expect(testNumber);
 
diff --git a/addons/web_tour/static/src/tour_service/tour_utils.js b/addons/web_tour/static/src/tour_service/tour_utils.js
index 2622e36de90..d261e1a766a 100644
--- a/addons/web_tour/static/src/tour_service/tour_utils.js
+++ b/addons/web_tour/static/src/tour_service/tour_utils.js
@@ -50,7 +50,7 @@ export function getFirstVisibleElement($elements) {
 }
 
 export function getJQueryElementFromSelector(selector) {
-    const iframeSplit = _.isString(selector) && selector.match(/(.*\biframe[^ ]*)(.*)/);
+    const iframeSplit = typeof selector === "string" && selector.match(/(.*\biframe[^ ]*)(.*)/);
     if (iframeSplit && iframeSplit[2]) {
         var $iframe = $(`${iframeSplit[1]}:not(.o_ignore_in_tour)`);
         if ($iframe.is('[is-ready="false"]')) {
diff --git a/addons/web_unsplash/static/src/js/unsplash_beacon.js b/addons/web_unsplash/static/src/js/unsplash_beacon.js
index 7154b2df14a..53600aacb48 100644
--- a/addons/web_unsplash/static/src/js/unsplash_beacon.js
+++ b/addons/web_unsplash/static/src/js/unsplash_beacon.js
@@ -10,7 +10,7 @@ publicWidget.registry.UnsplashBeacon = publicWidget.Widget.extend({
      * @override
      */
     start: function () {
-        var unsplashImages = _.map(this.$('img[src*="/unsplash/"]'), function (img) {
+        var unsplashImages = this.$('img[src*="/unsplash/"]').map((img) => {
             // get image id from URL (`http://www.domain.com:1234/unsplash/xYdf5feoI/lion.jpg` -> `xYdf5feoI`)
             return img.src.split('/unsplash/')[1].split('/')[0];
         });
diff --git a/addons/website/static/src/js/content/snippets.animation.js b/addons/website/static/src/js/content/snippets.animation.js
index 2a54e5f21ce..f2d51fb68ec 100644
--- a/addons/website/static/src/js/content/snippets.animation.js
+++ b/addons/website/static/src/js/content/snippets.animation.js
@@ -5,6 +5,8 @@
  */
 
 import { loadJS } from "@web/core/assets";
+import { escape } from "@web/core/utils/strings";
+import { debounce } from "@web/core/utils/timing";
 import Class from "web.Class";
 import config from "web.config";
 import core from "web.core";
@@ -229,7 +231,7 @@ var AnimationEffect = Class.extend(mixins.ParentedMixin, {
                 this.play(e);
 
                 clearTimeout(pauseTimer);
-                pauseTimer = _.delay((function () {
+                pauseTimer = setTimeout((() => {
                     this.pause();
                     pauseTimer = null;
                 }).bind(this), 2000);
@@ -310,7 +312,7 @@ var AnimationEffect = Class.extend(mixins.ParentedMixin, {
         var animationState = this._getStateCallback(elapsedTime, this._newEvent);
         if (!this._newEvent
          && animationState !== undefined
-         && _.isEqual(animationState, this._animationLastState)) {
+         && JSON.stringify(animationState) === JSON.stringify(this._animationLastState)) {
             return;
         }
         this._animationLastState = animationState;
@@ -451,7 +453,7 @@ registry.slider = publicWidget.Widget.extend({
         this._computeHeights();
         // Initialize carousel and pause if in edit mode.
         this.$el.carousel(this.editableMode ? 'pause' : undefined);
-        $(window).on('resize.slider', _.debounce(() => this._computeHeights(), 250));
+        $(window).on('resize.slider', debounce(() => this._computeHeights(), 250));
         return this._super.apply(this, arguments);
     },
     /**
@@ -524,7 +526,7 @@ registry.Parallax = Animation.extend({
      */
     start: function () {
         this._rebuild();
-        $(window).on('resize.animation_parallax', _.debounce(this._rebuild.bind(this), 500));
+        $(window).on('resize.animation_parallax', debounce(this._rebuild.bind(this), 500));
         this.modalEl = this.$target[0].closest('.modal');
         if (this.modalEl) {
             $(this.modalEl).on('shown.bs.modal.animation_parallax', () => {
@@ -724,7 +726,7 @@ registry.mediaVideo = publicWidget.Widget.extend(MobileYoutubeAutoplayMixin, {
         // the src is saved in the 'data-src' attribute or the
         // 'data-oe-expression' one (the latter is used as a workaround in 10.0
         // system but should obviously be reviewed in master).
-        var src = _.escape(this.$el.data('oe-expression') || this.$el.data('src'));
+        var src = escape(this.$el.data('oe-expression') || this.$el.data('src'));
         // Validate the src to only accept supported domains we can trust
         var m = src.match(/^(?:https?:)?\/\/([^/?#]+)/);
         if (!m) {
@@ -733,7 +735,7 @@ registry.mediaVideo = publicWidget.Widget.extend(MobileYoutubeAutoplayMixin, {
         }
         var domain = m[1].replace(/^www\./, '');
         var supportedDomains = ['youtu.be', 'youtube.com', 'youtube-nocookie.com', 'instagram.com', 'vine.co', 'player.vimeo.com', 'vimeo.com', 'dailymotion.com', 'player.youku.com', 'youku.com'];
-        if (!_.contains(supportedDomains, domain)) {
+        if (!supportedDomains.includes(domain)) {
             // Unsupported domain, don't inject iframe
             return;
         }
@@ -923,7 +925,7 @@ registry.socialShare = publicWidget.Widget.extend({
             'twitter': 'https://twitter.com/intent/tweet?original_referer=' + url + '&text=' + encodeURIComponent(title + hashtags + ' - ') + url,
             'linkedin': 'https://www.linkedin.com/sharing/share-offsite/?url=' + url,
         };
-        if (!_.contains(Object.keys(socialNetworks), social)) {
+        if (!Object.keys(socialNetworks).includes(social)) {
             return;
         }
         var wHeight = 500;
@@ -1036,7 +1038,7 @@ registry.FullScreenHeight = publicWidget.Widget.extend({
             // rules may alter the full-screen-height class behavior in some
             // cases (blog...).
             this._adaptSize();
-            $(window).on('resize.FullScreenHeight', _.debounce(() => this._adaptSize(), 250));
+            $(window).on('resize.FullScreenHeight', debounce(() => this._adaptSize(), 250));
         }
         return this._super(...arguments);
     },
@@ -1162,7 +1164,7 @@ registry.BottomFixedElement = publicWidget.Widget.extend({
      */
     async start() {
         this.$scrollingElement = $().getScrollingElement();
-        this.__hideBottomFixedElements = _.debounce(() => this._hideBottomFixedElements(), 100);
+        this.__hideBottomFixedElements = debounce(() => this._hideBottomFixedElements(), 100);
         this.$scrollingElement.on('scroll.bottom_fixed_element', this.__hideBottomFixedElements);
         $(window).on('resize.bottom_fixed_element', this.__hideBottomFixedElements);
         return this._super(...arguments);
diff --git a/addons/website/static/src/js/editor/snippets.editor.js b/addons/website/static/src/js/editor/snippets.editor.js
index efc0b7d01db..316296edfa8 100644
--- a/addons/website/static/src/js/editor/snippets.editor.js
+++ b/addons/website/static/src/js/editor/snippets.editor.js
@@ -72,11 +72,9 @@ const wSnippetMenu = weSnippetEditor.SnippetsMenu.extend({
      */
     _computeSnippetTemplates: function (html) {
         const $html = $(html);
-        const fontVariables = _.map($html.find('we-fontfamilypicker[data-variable]'), el => {
-            return el.dataset.variable;
-        });
+        const toFind = $html.find("we-fontfamilypicker[data-variable]").toArray();
+        const fontVariables = toFind.map((el) => el.dataset.variable);
         FontFamilyPickerUserValueWidget.prototype.fontVariables = fontVariables;
-
         return this._super(...arguments);
     },
     /**
diff --git a/addons/website/static/src/js/editor/widget_link.js b/addons/website/static/src/js/editor/widget_link.js
index 5ef1c818360..65b9ddb1d2b 100644
--- a/addons/website/static/src/js/editor/widget_link.js
+++ b/addons/website/static/src/js/editor/widget_link.js
@@ -2,6 +2,7 @@
 
 import weWidgets from "wysiwyg.widgets";
 import wUtils from "website.utils";
+import { debounce } from "@web/core/utils/timing";
 
 weWidgets.LinkTools.include({
     custom_events: Object.assign({}, weWidgets.LinkTools.prototype.custom_events || {}, {
@@ -14,7 +15,7 @@ weWidgets.LinkTools.include({
      */
     init: function () {
         this._super.apply(this, arguments);
-        this._adaptPageAnchor = _.debounce(this._adaptPageAnchor, this.LINK_DEBOUNCE);
+        this._adaptPageAnchor = debounce(this._adaptPageAnchor, this.LINK_DEBOUNCE);
     },
     /**
      * Allows the URL input to propose existing website pages.
diff --git a/addons/website/static/src/js/editor/wysiwyg.js b/addons/website/static/src/js/editor/wysiwyg.js
index fffbd3e8924..d85eb04993e 100644
--- a/addons/website/static/src/js/editor/wysiwyg.js
+++ b/addons/website/static/src/js/editor/wysiwyg.js
@@ -16,7 +16,7 @@ import socialMediaOptions from "@website/snippets/s_social_media/options";
  * @returns {Promise<jQuery>}
  */
 function toggleDropdown($toggles, show) {
-    return Promise.all(_.map($toggles, toggle => {
+    return Promise.all($($toggles).toArray().map(toggle => {
         // We must select the element via the iframe so that the event handlers
         // declared on the iframe are triggered.
         const $toggle = toggle.ownerDocument.defaultView.$(toggle);
diff --git a/addons/website/static/src/js/utils.js b/addons/website/static/src/js/utils.js
index 0ec09344e8f..778c38d83c3 100644
--- a/addons/website/static/src/js/utils.js
+++ b/addons/website/static/src/js/utils.js
@@ -22,7 +22,7 @@ function loadAnchors(url, body) {
             resolve();
         }
     }).then(function (response) {
-        const anchors = _.map($(response).find('[id][data-anchor=true]'), function (el) {
+        const anchors = $(response).find('[id][data-anchor=true]').toArray().map((el) => {
             return '#' + el.id;
         });
         // Always suggest the top and the bottom of the page as internal link
@@ -123,7 +123,7 @@ function autocompleteWithPages(self, $input, options) {
  * @param {jQuery} [$excluded]
  */
 function onceAllImagesLoaded($element, $excluded) {
-    var defs = _.map($element.find('img').addBack('img'), function (img) {
+    var defs = $element.find('img').addBack('img').map(img => {
         if (img.complete || $excluded && ($excluded.is(img) || $excluded.has(img).length)) {
             return; // Already loaded
         }
@@ -175,7 +175,7 @@ function prompt(options, _qweb) {
             text: options
         };
     }
-    if (_.isUndefined(_qweb)) {
+    if (typeof _qweb === "undefined") {
         _qweb = 'website.prompt';
     }
     options = Object.assign({
diff --git a/addons/website/static/src/snippets/s_chart/options.js b/addons/website/static/src/snippets/s_chart/options.js
index 72f1855e14e..955d211d4fa 100644
--- a/addons/website/static/src/snippets/s_chart/options.js
+++ b/addons/website/static/src/snippets/s_chart/options.js
@@ -170,9 +170,13 @@ options.registry.InnerChart = options.Class.extend({
         } else {
             // Find max value from each row/column data
             const datasets = JSON.parse(dataset.data).datasets || [];
-            const dataValue = _.flatten(datasets.map(el => el.data.map(data => {
-                return !isNaN(parseInt(data)) ? parseInt(data) : 0;
-            })));
+            const dataValue = datasets
+                .map((el) => {
+                    return el.data.map((data) => {
+                        return !isNaN(parseInt(data)) ? parseInt(data) : 0;
+                    });
+                })
+                .flat();
             // When max value is not given and min value is greater than chart
             // data values
             if (minValue >= Math.max(...dataValue)) {
diff --git a/addons/website/static/src/snippets/s_image_gallery/options.js b/addons/website/static/src/snippets/s_image_gallery/options.js
index ecf0fac1325..71243d3a0ea 100644
--- a/addons/website/static/src/snippets/s_image_gallery/options.js
+++ b/addons/website/static/src/snippets/s_image_gallery/options.js
@@ -278,7 +278,7 @@ options.registry.gallery = options.Class.extend({
      */
     slideshow: function () {
         const imageEls = this._getImages();
-        const images = _.map(imageEls, img => ({
+        const images = imageEls.map((img) => ({
             // Use getAttribute to get the attribute value otherwise .src
             // returns the absolute url.
             src: img.getAttribute('src'),
diff --git a/addons/website/static/src/snippets/s_searchbar/000.js b/addons/website/static/src/snippets/s_searchbar/000.js
index 824ec0c1ad1..cadc904d725 100644
--- a/addons/website/static/src/snippets/s_searchbar/000.js
+++ b/addons/website/static/src/snippets/s_searchbar/000.js
@@ -5,6 +5,7 @@ import publicWidget from 'web.public.widget';
 
 import {qweb} from 'web.core';
 import {Markup} from 'web.utils';
+import { debounce } from '@web/core/utils/timing';
 
 publicWidget.registry.searchBar = publicWidget.Widget.extend({
     selector: '.o_searchbar_form',
@@ -24,8 +25,8 @@ publicWidget.registry.searchBar = publicWidget.Widget.extend({
 
         this._dp = new concurrency.DropPrevious();
 
-        this._onInput = _.debounce(this._onInput, 400);
-        this._onFocusOut = _.debounce(this._onFocusOut, 100);
+        this._onInput = debounce(this._onInput, 400);
+        this._onFocusOut = debounce(this._onFocusOut, 100);
     },
     /**
      * @override
diff --git a/addons/website/static/src/snippets/s_website_form/000.js b/addons/website/static/src/snippets/s_website_form/000.js
index 76e30162fc5..14ab98a1528 100644
--- a/addons/website/static/src/snippets/s_website_form/000.js
+++ b/addons/website/static/src/snippets/s_website_form/000.js
@@ -8,7 +8,8 @@
     import publicWidget from "web.public.widget";
     import dom from "web.dom";
     import concurrency from "web.concurrency";
-import { sprintf } from "@web/core/utils/strings";
+    import { sprintf } from "@web/core/utils/strings";
+    import { debounce } from "@web/core/utils/timing";
 
     var _t = core._t;
     var qweb = core.qweb;
@@ -91,7 +92,7 @@ import { sprintf } from "@web/core/utils/strings";
             }
             this._updateFieldsVisibility();
 
-            this._onFieldInputDebounced = _.debounce(this._onFieldInput.bind(this), 400);
+            this._onFieldInputDebounced = debounce(this._onFieldInput.bind(this), 400);
             this.$el.on('input.s_website_form', '.s_website_form_field', this._onFieldInputDebounced);
 
             // Initialize datetimepickers
@@ -459,7 +460,7 @@ import { sprintf } from "@web/core/utils/strings";
                 if (invalid_inputs.length || error_fields[field_name]) {
                     $field.addClass('o_has_error');
                     $controls.addClass('is-invalid');
-                    if (_.isString(error_fields[field_name])) {
+                    if (typeof error_fields[field_name] === "string") {
                         $field.popover({content: error_fields[field_name], trigger: 'hover', container: 'body', placement: 'top'});
                         // update error message and show it.
                         $field.data("bs.popover").config.content = error_fields[field_name];
diff --git a/addons/website/static/tests/tours/website_form_editor_frontend.js b/addons/website/static/tests/tours/website_form_editor_frontend.js
index e36b12062b4..bd6f62242d0 100644
--- a/addons/website/static/tests/tours/website_form_editor_frontend.js
+++ b/addons/website/static/tests/tours/website_form_editor_frontend.js
@@ -175,7 +175,7 @@ registry.category("web_tour.tours").add("website_form_editor_tour_results", {
                     $('body').append('<div id="website_form_editor_success_test_tour_'+model+'"></div>');
                 }
             };
-            mailDef.then(_.bind(success, this, 'mail_mail'));
+            mailDef.then(success.bind(this, 'mail_mail'));
         }
     },
     {
diff --git a/addons/website_event/static/src/js/website_event.js b/addons/website_event/static/src/js/website_event.js
index ce44b3e20f1..aea1cf036f8 100644
--- a/addons/website_event/static/src/js/website_event.js
+++ b/addons/website_event/static/src/js/website_event.js
@@ -44,7 +44,7 @@ var EventRegistrationForm = Widget.extend({
         $('#registration_form select').each(function () {
             post[$(this).attr('name')] = $(this).val();
         });
-        var tickets_ordered = _.some(_.map(post, function (value, key) { return parseInt(value); }));
+        var tickets_ordered = _.some(Object.values(post).map((value) => parseInt(value)));
         if (!tickets_ordered) {
             $('<div class="alert alert-info"/>')
                 .text(_t('Please select at least one ticket.'))
diff --git a/addons/website_event_exhibitor/static/src/js/event_exhibitor_connect.js b/addons/website_event_exhibitor/static/src/js/event_exhibitor_connect.js
index da0a7e40d89..201cfd1bda6 100644
--- a/addons/website_event_exhibitor/static/src/js/event_exhibitor_connect.js
+++ b/addons/website_event_exhibitor/static/src/js/event_exhibitor_connect.js
@@ -1,5 +1,6 @@
 /** @odoo-module alias=website_event_exhibitor.event_exhibitor_connect **/
 
+import { debounce } from "@web/core/utils/timing";
 import Dialog from "web.Dialog";
 import publicWidget from "web.public.widget";
 import {Markup} from "web.utils";
@@ -63,7 +64,7 @@ publicWidget.registry.eventExhibitorConnect = publicWidget.Widget.extend({
      */
     init: function () {
         this._super(...arguments);
-        this._onConnectClick = _.debounce(this._onConnectClick, 500, true);
+        this._onConnectClick = debounce(this._onConnectClick, 500, true);
     },
 
     /**
diff --git a/addons/website_event_track/static/src/js/event_track_reminder.js b/addons/website_event_track/static/src/js/event_track_reminder.js
index c8ebf8c832f..f095cf44985 100644
--- a/addons/website_event_track/static/src/js/event_track_reminder.js
+++ b/addons/website_event_track/static/src/js/event_track_reminder.js
@@ -1,6 +1,7 @@
 /** @odoo-module alias=website_event_track.website_event_track_reminder **/
 
 import { sprintf } from "@web/core/utils/strings";
+import { debounce } from "@web/core/utils/timing";
 import core from "web.core";
 var _t = core._t;
 import publicWidget from "web.public.widget";
@@ -16,7 +17,7 @@ publicWidget.registry.websiteEventTrackReminder = publicWidget.Widget.extend({
      */
     init: function () {
         this._super.apply(this, arguments);
-        this._onReminderToggleClick = _.debounce(this._onReminderToggleClick, 500, true);
+        this._onReminderToggleClick = debounce(this._onReminderToggleClick, 500, true);
     },
 
     //--------------------------------------------------------------------------
diff --git a/addons/website_forum/static/src/js/website_forum.js b/addons/website_forum/static/src/js/website_forum.js
index e2447d4a416..023b81e9acb 100644
--- a/addons/website_forum/static/src/js/website_forum.js
+++ b/addons/website_forum/static/src/js/website_forum.js
@@ -8,6 +8,7 @@ import wysiwygLoader from "web_editor.loader";
 import publicWidget from "web.public.widget";
 import { Markup } from "web.utils";
 import session from "web.session";
+import { escape } from "@web/core/utils/strings";
 var qweb = core.qweb;
 
 var _t = core._t;
@@ -76,9 +77,9 @@ publicWidget.registry.websiteForum = publicWidget.Widget.extend({
             },
             formatResult: function (term) {
                 if (term.isNew) {
-                    return '<span class="badge bg-primary">New</span> ' + _.escape(term.text);
+                    return '<span class="badge bg-primary">New</span> ' + escape(term.text);
                 } else {
-                    return _.escape(term.text);
+                    return escape(term.text);
                 }
             },
             ajax: {
@@ -616,9 +617,7 @@ publicWidget.registry.websiteForumSpam = publicWidget.Widget.extend({
     _onMarkSpamClick: function (ev) {
         var key = this.$('.modal .tab-pane.active').data('key');
         var $inputs = this.$('.modal .tab-pane.active input.form-check-input:checked');
-        var values = _.map($inputs, function (o) {
-            return parseInt(o.value);
-        });
+        var values = $inputs.map((o) => parseInt(o.value));
         return this._rpc({model: 'forum.post',
             method: 'mark_as_offensive_batch',
             args: [this.spamIDs, key, values],
diff --git a/addons/website_links/static/src/js/website_links.js b/addons/website_links/static/src/js/website_links.js
index e349a5475ee..3d0c0b8d922 100644
--- a/addons/website_links/static/src/js/website_links.js
+++ b/addons/website_links/static/src/js/website_links.js
@@ -34,7 +34,7 @@ var SelectBox = publicWidget.Widget.extend({
                 fields: ['id', 'name'],
             },
         }).then(function (result) {
-            self.objects = _.map(result, function (val) {
+            self.objects = result.map((val) => {
                 return {id: val.id, text: val.name};
             });
         }));
@@ -103,7 +103,7 @@ var SelectBox = publicWidget.Widget.extend({
      * @param {Object} ev
      */
     _onChange: function (ev) {
-        if (!ev.added || !_.isString(ev.added.id)) {
+        if (!ev.added || typeof ev.added.id !== "string") {
             return;
         }
         this._createObject(ev.added.id);
@@ -327,7 +327,9 @@ var RecentLinks = publicWidget.Widget.extend({
      * @private
      */
     removeLinks: function () {
-        _.invoke(this.getChildren(), 'destroy');
+        this.getChildren().forEach((child) => {
+            child.destroy();
+        });
     },
     /**
      * @private
diff --git a/addons/website_sale/static/src/js/website_sale.js b/addons/website_sale/static/src/js/website_sale.js
index 6659c0dae0b..643edb77c30 100644
--- a/addons/website_sale/static/src/js/website_sale.js
+++ b/addons/website_sale/static/src/js/website_sale.js
@@ -12,6 +12,7 @@ import dom from "web.dom";
 import { cartesian } from "@web/core/utils/arrays";
 import { ComponentWrapper } from "web.OwlCompatibility";
 import { ProductImageViewerWrapper } from "@website_sale/js/components/website_sale_image_viewer";
+import { debounce } from "@web/core/utils/timing";
 
 publicWidget.registry.WebsiteSale = publicWidget.Widget.extend(VariantMixin, cartHandlerMixin, {
     selector: '.oe_website_sale',
@@ -49,8 +50,8 @@ publicWidget.registry.WebsiteSale = publicWidget.Widget.extend(VariantMixin, car
     init: function () {
         this._super.apply(this, arguments);
 
-        this._changeCartQuantity = _.debounce(this._changeCartQuantity.bind(this), 500);
-        this._changeCountry = _.debounce(this._changeCountry.bind(this), 500);
+        this._changeCartQuantity = debounce(this._changeCartQuantity.bind(this), 500);
+        this._changeCountry = debounce(this._changeCountry.bind(this), 500);
 
         this.isWebsite = true;
         this.filmStripStartX = 0;
@@ -181,9 +182,7 @@ publicWidget.registry.WebsiteSale = publicWidget.Widget.extend(VariantMixin, car
      */
     _setUrlHash: function ($parent) {
         var $attributes = $parent.find('input.js_variant_change:checked, select.js_variant_change option:selected');
-        var attributeIds = _.map($attributes, function (elem) {
-            return $(elem).data('value_id');
-        });
+        var attributeIds = $attributes.toArray().map((elem) => $(elem).data("value_id"));
         window.location.replace('#attr=' + attributeIds.join(','));
     },
     /**
diff --git a/addons/website_sale/static/src/js/website_sale_payment.js b/addons/website_sale/static/src/js/website_sale_payment.js
index 74b52ef9bd4..af1e7522016 100644
--- a/addons/website_sale/static/src/js/website_sale_payment.js
+++ b/addons/website_sale/static/src/js/website_sale_payment.js
@@ -1,6 +1,7 @@
 /** @odoo-module **/
     
-    import checkoutForm from "payment.checkout_form";
+    import { debounce } from "@web/core/utils/timing";
+import checkoutForm from "payment.checkout_form";
     import publicWidget from "web.public.widget";
 
     const websiteSalePaymentMixin = {
@@ -9,7 +10,7 @@
          * @override
          */
         init: function () {
-            this._onClickTCCheckbox = _.debounce(this._onClickTCCheckbox, 100, true);
+            this._onClickTCCheckbox = debounce(this._onClickTCCheckbox, 100, true);
             this._super(...arguments);
         },
 
@@ -60,9 +61,7 @@
          * @return {boolean} Whether the submit button can be enabled
          */
         _isButtonReady: function () {
-            const disabledReasonFound = _.contains(
-                this.$submitButton.data('disabled_reasons'), true
-            );
+            const disabledReasonFound = this.$submitButton.data("disabled_reasons");
             return !disabledReasonFound && this._super();
         },
 
@@ -115,10 +114,7 @@
              */
             _onClickTCCheckbox: function () {
                 this._adaptConfirmButton();
-
-                const disabledReasonFound = _.contains(
-                    this.$submitButton.data('disabled_reasons'), true
-                );
+                const disabledReasonFound = this.$submitButton.data("disabled_reasons");
                 this.$submitButton.prop('disabled', disabledReasonFound);
             },
         }));
diff --git a/addons/website_sale/static/src/js/website_sale_recently_viewed.js b/addons/website_sale/static/src/js/website_sale_recently_viewed.js
index e68507e0846..37cddd3376a 100644
--- a/addons/website_sale/static/src/js/website_sale_recently_viewed.js
+++ b/addons/website_sale/static/src/js/website_sale_recently_viewed.js
@@ -1,5 +1,6 @@
 /** @odoo-module **/
 
+import { debounce } from "@web/core/utils/timing";
 import publicWidget from "web.public.widget";
 import {getCookie, setCookie} from "web.utils.cookies";
 
@@ -15,7 +16,7 @@ publicWidget.registry.productsRecentlyViewedUpdate = publicWidget.Widget.extend(
      */
     init: function () {
         this._super.apply(this, arguments);
-        this._onProductChange = _.debounce(this._onProductChange, this.debounceValue);
+        this._onProductChange = debounce(this._onProductChange, this.debounceValue);
     },
 
     //--------------------------------------------------------------------------
diff --git a/addons/website_sale_comparison/static/src/js/website_sale_comparison.js b/addons/website_sale_comparison/static/src/js/website_sale_comparison.js
index 12443567995..0052371181a 100644
--- a/addons/website_sale_comparison/static/src/js/website_sale_comparison.js
+++ b/addons/website_sale_comparison/static/src/js/website_sale_comparison.js
@@ -68,7 +68,7 @@ var ProductComparison = publicWidget.Widget.extend(VariantMixin, {
             self._removeFromComparelist(ev);
             self.guard.exec(function() {
                 const newLink = '/shop/compare?products=' + encodeURIComponent(self.comparelist_product_ids);
-                window.location.href = _.isEmpty(self.comparelist_product_ids) ? '/shop' : newLink;
+                window.location.href = Object.keys(self.comparelist_product_ids || {}).length === 0 ? '/shop' : newLink;
             });
         });
 
@@ -172,7 +172,7 @@ var ProductComparison = publicWidget.Widget.extend(VariantMixin, {
     _addNewProductsImpl: function (product_id) {
         var self = this;
         $('.o_product_feature_panel').addClass('d-md-block');
-        if (!_.contains(self.comparelist_product_ids, product_id)) {
+        if (!self.comparelist_product_ids.includes(product_id)) {
             self.comparelist_product_ids.push(product_id);
             if (_.has(self.product_data, product_id)){
                 self._updateContent();
@@ -233,7 +233,7 @@ var ProductComparison = publicWidget.Widget.extend(VariantMixin, {
     _updateComparelistView: function () {
         this.$('.o_product_circle').text(this.comparelist_product_ids.length);
         this.$('.o_comparelist_button').removeClass('d-md-block');
-        if (_.isEmpty(this.comparelist_product_ids)) {
+        if (Object.keys(this.comparelist_product_ids || {}).length === 0) {
             $('.o_product_feature_panel').removeClass('d-md-block');
         } else {
             $('.o_product_feature_panel').addClass('d-md-block');
diff --git a/addons/website_sale_wishlist/static/src/js/website_sale_wishlist.js b/addons/website_sale_wishlist/static/src/js/website_sale_wishlist.js
index 51038e9b7d7..c0099db6361 100644
--- a/addons/website_sale_wishlist/static/src/js/website_sale_wishlist.js
+++ b/addons/website_sale_wishlist/static/src/js/website_sale_wishlist.js
@@ -96,7 +96,7 @@ publicWidget.registry.ProductWishlist = publicWidget.Widget.extend(VariantMixin,
         productReady.then(function (productId) {
             productId = parseInt(productId, 10);
 
-            if (productId && !_.contains(self.wishlistProductIDs, productId)) {
+            if (productId && !self.wishlistProductIDs.includes(productId)) {
                 return self._rpc({
                     route: '/shop/wishlist/add',
                     params: {
@@ -250,7 +250,7 @@ publicWidget.registry.ProductWishlist = publicWidget.Widget.extend(VariantMixin,
         var $input = $(ev.target);
         var $parent = $input.closest('.js_product');
         var $el = $parent.find("[data-action='o_wishlist']");
-        if (!_.contains(this.wishlistProductIDs, parseInt($input.val(), 10))) {
+        if (!this.wishlistProductIDs.includes(parseInt($input.val(), 10))) {
             $el.prop("disabled", false).removeClass('disabled').removeAttr('disabled');
         } else {
             $el.prop("disabled", true).addClass('disabled').attr('disabled', 'disabled');
@@ -265,7 +265,7 @@ publicWidget.registry.ProductWishlist = publicWidget.Widget.extend(VariantMixin,
         var productID = ev.currentTarget.value;
         var $el = $(ev.target).closest('.js_add_cart_variants').find("[data-action='o_wishlist']");
 
-        if (!_.contains(this.wishlistProductIDs, parseInt(productID, 10))) {
+        if (!this.wishlistProductIDs.includes(parseInt(productID, 10))) {
             $el.prop("disabled", false).removeClass('disabled').removeAttr('disabled');
         } else {
             $el.prop("disabled", true).addClass('disabled').attr('disabled', 'disabled');
diff --git a/addons/website_slides/static/src/js/slides_course_fullscreen_player.js b/addons/website_slides/static/src/js/slides_course_fullscreen_player.js
index 50ca540a39e..7ceb780e685 100644
--- a/addons/website_slides/static/src/js/slides_course_fullscreen_player.js
+++ b/addons/website_slides/static/src/js/slides_course_fullscreen_player.js
@@ -450,9 +450,7 @@
             clipboard.on('success', function () {
                 clipboard.destroy();
                 $clipboardBtn.tooltip('show');
-                _.delay(function () {
-                    $clipboardBtn.tooltip("hide");
-                }, 800);
+                setTimeout(() => $clipboardBtn.tooltip("hide"), 800);
             });
             clipboard.on('error', function (e) {
                 clipboard.destroy();
@@ -619,7 +617,7 @@
                 // technical settings for the Fullscreen to work
                 var autoSetDone = false;
                 if (!slideData.hasQuestion) {
-                    if (_.contains(['infographic', 'document', 'article'], slideData.category)) {
+                    if (['infographic', 'document', 'article'].includes(slideData.category)) {
                         autoSetDone = true;  // images, documents (local + external) and articles are marked as completed when opened
                     } else if (slideData.category === 'video' && slideData.videoSourceType === 'google_drive') {
                         autoSetDone = true;  // google drive videos do not benefit from the YouTube integration and are marked as completed when opened
@@ -669,7 +667,7 @@
             }
 
             // render slide content
-            if (_.contains(['document', 'infographic'], slide.category)) {
+            if (['document', 'infographic'].includes(slide.category)) {
                 $content.html(QWeb.render('website.slides.fullscreen.content', {widget: this}));
             } else if (slide.category === 'video' && slide.videoSourceType === 'youtube') {
                 this.videoPlayer = new VideoPlayerYouTube(this, slide);
diff --git a/addons/website_slides/static/src/js/slides_course_quiz.js b/addons/website_slides/static/src/js/slides_course_quiz.js
index 6d503a16e6c..538df35bf3a 100644
--- a/addons/website_slides/static/src/js/slides_course_quiz.js
+++ b/addons/website_slides/static/src/js/slides_course_quiz.js
@@ -280,7 +280,7 @@
                 $question.find('a.o_wslides_quiz_answer').each(function () {
                     var $answer = $(this);
                     if (!$answer.find('input[type=radio]')[0].checked &&
-                        _.contains(self.slide.sessionAnswers, $answer.data('answerId'))) {
+                        self.slide.sessionAnswers.includes($answer.data('answerId'))) {
                         $answer.find('input[type=radio]').prop('checked', true);
                     }
                 });
diff --git a/addons/website_slides/static/src/js/slides_course_quiz_finish.js b/addons/website_slides/static/src/js/slides_course_quiz_finish.js
index a6384bb50bb..0c048074aeb 100644
--- a/addons/website_slides/static/src/js/slides_course_quiz_finish.js
+++ b/addons/website_slides/static/src/js/slides_course_quiz_finish.js
@@ -100,17 +100,17 @@ var SlideQuizFinishModal = Dialog.extend({
         if (this.quiz.rankProgress.level_up) {
             this.$('.o_wslides_quiz_modal_title').text(_t('Level up!'));
             $progressBar.css('width', '100%');
-            _.delay(function () {
+            setTimeout(() => {
                 self.$('.o_wslides_quiz_modal_rank_lower_bound')
                     .text(self.quiz.rankProgress.new_rank.lower_bound);
                 self.$('.o_wslides_quiz_modal_rank_upper_bound')
                     .text(self.quiz.rankProgress.new_rank.upper_bound || "");
 
                 // we need to use _.delay to force DOM re-rendering between 0 and new percentage
-                _.delay(function () {
+                setTimeout(() => {
                     $progressBar.addClass('no-transition').width('0%');
                 }, 1);
-                _.delay(function () {
+                setTimeout(() => {
                     $progressBar
                         .removeClass('no-transition')
                         .width(self.quiz.rankProgress.new_rank.progress + '%');
@@ -128,15 +128,15 @@ var SlideQuizFinishModal = Dialog.extend({
      */
     _animateText: function () {
         var self = this;
-       _.delay(function () {
+        setTimeout(function () {
             self.$('h4.o_wslides_quiz_modal_xp_gained').addClass('show in');
             self.$('.o_wslides_quiz_modal_dismiss').removeClass('d-none');
         }, 800);
 
         if (this.quiz.rankProgress.level_up) {
-            _.delay(function () {
+            setTimeout(function () {
                 self.$('.o_wslides_quiz_modal_rank_motivational').addClass('fade');
-                _.delay(function () {
+                setTimeout(function () {
                     self.$('.o_wslides_quiz_modal_rank_motivational').html(
                         self.quiz.rankProgress.last_rank ?
                             self.quiz.rankProgress.description :
diff --git a/addons/website_slides/static/src/js/slides_embed.js b/addons/website_slides/static/src/js/slides_embed.js
index 0e83b41feb2..5a6e5a4fc52 100644
--- a/addons/website_slides/static/src/js/slides_embed.js
+++ b/addons/website_slides/static/src/js/slides_embed.js
@@ -1,4 +1,5 @@
 /* global PDFSlidesViewer */
+
 /**
  * This is a minimal version of the PDFViewer widget.
  * It is NOT use in the website_slides module, but it is called when embedding
@@ -7,6 +8,14 @@
  */
 $(function () {
 
+    function debounce(func, timeout = 300){
+        let timer;
+        return (...args) => {
+          clearTimeout(timer);
+          timer = setTimeout(() => { func.apply(this, args); }, timeout);
+        };
+    }
+
     if ($('#PDFViewer') && $('#PDFViewerCanvas')) { // check if presentation only
         var MIN_ZOOM=1, MAX_ZOOM=10, ZOOM_INCREMENT=.5;
 
@@ -177,7 +186,7 @@ $(function () {
                 return false;
             }
         });
-        $(window).on('resize', _.debounce(function() {
+        $(window).on("resize", debounce(() => {
             embeddedViewer.on_resize();
         }, 500));
 
diff --git a/addons/website_slides/static/src/js/slides_share.js b/addons/website_slides/static/src/js/slides_share.js
index d961accd446..cdb64ba6ca6 100644
--- a/addons/website_slides/static/src/js/slides_share.js
+++ b/addons/website_slides/static/src/js/slides_share.js
@@ -121,9 +121,7 @@ publicWidget.registry.websiteSlidesShare = publicWidget.Widget.extend({
         clipboard.on('success', function () {
             clipboard.destroy();
             $clipboardBtn.tooltip('show');
-            _.delay(function () {
-                $clipboardBtn.tooltip("hide");
-            }, 800);
+            setTimeout(() => $clipboardBtn.tooltip("hide"), 800);
         });
         clipboard.on('error', function (e) {
             console.log(e);
@@ -152,7 +150,7 @@ publicWidget.registry.websiteSlidesEmbedShare = publicWidget.Widget.extend({
         clipboard.on('success', function () {
             clipboard.destroy();
             $clipboardBtn.tooltip('show');
-            _.delay(function () {
+            setTimeout(function () {
                 $clipboardBtn.tooltip("hide");
             }, 800);
         });
diff --git a/addons/website_slides/static/src/js/slides_upload.js b/addons/website_slides/static/src/js/slides_upload.js
index d1df29820b6..247d7b5f5a2 100644
--- a/addons/website_slides/static/src/js/slides_upload.js
+++ b/addons/website_slides/static/src/js/slides_upload.js
@@ -147,7 +147,7 @@ var SlideUploadDialog = Dialog.extend({
     _formValidateGetValues: async function (forcePublished) {
         var slideCategory = 'document';
         // default slide_category (for article for instance)
-        if (_.contains(this.slide_category_data), this.get('state')) {
+        if (Object.keys(this.slide_category_data).includes(this.get("state"))) {
             slideCategory = this.get('state');
         }
 
diff --git a/addons/website_twitter/static/src/js/website.twitter.animation.js b/addons/website_twitter/static/src/js/website.twitter.animation.js
index 6cc6b637502..c0d99e3a8e1 100644
--- a/addons/website_twitter/static/src/js/website.twitter.animation.js
+++ b/addons/website_twitter/static/src/js/website.twitter.animation.js
@@ -3,6 +3,7 @@
 import core from "web.core";
 import {Markup} from "web.utils";
 import publicWidget from "web.public.widget";
+import { escape } from "@web/core/utils/strings";
 
 var qweb = core.qweb;
 
@@ -31,13 +32,13 @@ publicWidget.registry.twitter = publicWidget.Widget.extend({
                 return;
             }
 
-            if (_.isEmpty(data)) {
+            if (Object.keys(data || {}).length === 0) {
                 return;
             }
 
-            var tweets = _.map(data, function (tweet) {
+            var tweets = data.map((tweet) => {
                 // Parse tweet date
-                if (_.isEmpty(tweet.created_at)) {
+                if (Object.keys(tweet.created_at || {}).length === 0) {
                     tweet.created_at = '';
                 } else {
                     var v = tweet.created_at.split(' ');
@@ -46,7 +47,7 @@ publicWidget.registry.twitter = publicWidget.Widget.extend({
                 }
 
                 // Parse tweet text
-                tweet.text = Markup(_.escape(tweet.text)
+                tweet.text = Markup(escape(tweet.text)
                     .replace(
                         /[A-Za-z]+:\/\/[A-Za-z0-9-_]+\.[A-Za-z0-9-_:%&~\?\/.=]+/g,
                         function (url) {