diff --git a/maintenance/projects/js-themes-toolkit-v8-x/packages/generator-liferay-theme/generators/themelet/index.js b/maintenance/projects/js-themes-toolkit-v8-x/packages/generator-liferay-theme/generators/themelet/index.js
index 9820c0993f..d81a64a2dc 100644
--- a/maintenance/projects/js-themes-toolkit-v8-x/packages/generator-liferay-theme/generators/themelet/index.js
+++ b/maintenance/projects/js-themes-toolkit-v8-x/packages/generator-liferay-theme/generators/themelet/index.js
@@ -82,14 +82,14 @@ module.exports = class extends Base {
 		return prompts.reduce((result, item) => {
 			const name = item.name;
 
-			if (name == 'themeName') {
+			if (name === 'themeName') {
 				item.default = 'My Liferay Themelet';
 				item.message = 'What would you like to call your themelet?';
 			}
-			else if (name == 'themeId') {
+			else if (name === 'themeId') {
 				item.message = 'Would you like to use this as the themeletId?';
 			}
-			else if (name == 'liferayVersion') {
+			else if (name === 'liferayVersion') {
 				item.choices = ['7.1', '7.0', 'All'];
 				item.message = 'Which version of Liferay is this themelet for?';
 			}
@@ -107,7 +107,7 @@ module.exports = class extends Base {
 	}
 
 	_promptCallback(props) {
-		if (props.liferayVersion == 'All') {
+		if (props.liferayVersion === 'All') {
 			props.liferayVersion = '*';
 		}
 		super._promptCallback.call(this, props);
diff --git a/maintenance/projects/js-themes-toolkit-v8-x/packages/generator-liferay-theme/lib/__tests__/layout_creator.test.js b/maintenance/projects/js-themes-toolkit-v8-x/packages/generator-liferay-theme/lib/__tests__/layout_creator.test.js
index ec98caef6a..303be9813d 100644
--- a/maintenance/projects/js-themes-toolkit-v8-x/packages/generator-liferay-theme/lib/__tests__/layout_creator.test.js
+++ b/maintenance/projects/js-themes-toolkit-v8-x/packages/generator-liferay-theme/lib/__tests__/layout_creator.test.js
@@ -509,7 +509,7 @@ describe('LayoutCreator', () => {
 			_.forEach(choices, (choice, index) => {
 				index = index + 1;
 
-				if (index % 2 == 0) {
+				if (index % 2 === 0) {
 					assert.equal(choice.type, 'separator');
 					assert.equal(
 						stripAnsi(choice.line),
@@ -527,7 +527,7 @@ describe('LayoutCreator', () => {
 				}
 			});
 
-			assert(choices[choices.length - 1].type != 'separator');
+			assert(choices[choices.length - 1].type !== 'separator');
 
 			while (prototype.rows.length < 7) {
 				prototype.rows.push({
@@ -569,7 +569,7 @@ describe('LayoutCreator', () => {
 			_.forEach(choices, (choice, index) => {
 				index = index + 1;
 
-				if (index % 2 == 0) {
+				if (index % 2 === 0) {
 					assert.equal(choice.value, choiceValue);
 					assert.equal(
 						stripAnsi(choice.name),
@@ -587,7 +587,7 @@ describe('LayoutCreator', () => {
 				}
 			});
 
-			assert(choices[choices.length - 1].type == 'separator');
+			assert(choices[choices.length - 1].type === 'separator');
 
 			while (prototype.rows.length < 7) {
 				prototype.rows.push({
diff --git a/maintenance/projects/js-themes-toolkit-v8-x/packages/generator-liferay-theme/lib/layout_creator.js b/maintenance/projects/js-themes-toolkit-v8-x/packages/generator-liferay-theme/lib/layout_creator.js
index 16fb15a2ad..c7fc2b43e5 100644
--- a/maintenance/projects/js-themes-toolkit-v8-x/packages/generator-liferay-theme/lib/layout_creator.js
+++ b/maintenance/projects/js-themes-toolkit-v8-x/packages/generator-liferay-theme/lib/layout_creator.js
@@ -29,7 +29,7 @@ inquirer.prompt.prompts.list.prototype.render = function () {
 	var choices = _.reduce(
 		this.opt.choices.choices,
 		(result, item) => {
-			if (item.type != 'separator') {
+			if (item.type !== 'separator') {
 				result.push(item);
 			}
 
@@ -113,16 +113,16 @@ LayoutCreator.prototype = {
 	_afterPromptFinishRow(answers, cb) {
 		var finish = answers.finish;
 
-		if (finish == 'add') {
+		if (finish === 'add') {
 			this._promptRow(cb);
 		}
-		else if (finish == 'insert') {
+		else if (finish === 'insert') {
 			this._promptInsertRow(cb);
 		}
-		else if (answers.finish == 'finish') {
+		else if (answers.finish === 'finish') {
 			cb(null);
 		}
-		else if (finish == 'remove') {
+		else if (finish === 'remove') {
 			this._promptRemoveRow(cb);
 		}
 	},
diff --git a/maintenance/projects/js-themes-toolkit-v8-x/packages/liferay-theme-tasks/index.js b/maintenance/projects/js-themes-toolkit-v8-x/packages/liferay-theme-tasks/index.js
index b828a35820..86858e73bb 100644
--- a/maintenance/projects/js-themes-toolkit-v8-x/packages/liferay-theme-tasks/index.js
+++ b/maintenance/projects/js-themes-toolkit-v8-x/packages/liferay-theme-tasks/index.js
@@ -51,7 +51,7 @@ function register(options) {
 	store.set('changedFile');
 
 	globby.sync([path.resolve(__dirname, 'tasks/**/*')]).forEach((item) => {
-		if (item.indexOf('__tests__') == -1) {
+		if (item.indexOf('__tests__') === -1) {
 			// eslint-disable-next-line @liferay/no-dynamic-require
 			require(item)(options);
 		}
diff --git a/maintenance/projects/js-themes-toolkit-v8-x/packages/liferay-theme-tasks/lib/lookup/template.js b/maintenance/projects/js-themes-toolkit-v8-x/packages/liferay-theme-tasks/lib/lookup/template.js
index 41cde6a3d5..64a50a7d3f 100644
--- a/maintenance/projects/js-themes-toolkit-v8-x/packages/liferay-theme-tasks/lib/lookup/template.js
+++ b/maintenance/projects/js-themes-toolkit-v8-x/packages/liferay-theme-tasks/lib/lookup/template.js
@@ -36,7 +36,7 @@ function isLanguage(version) {
 
 function printWarnings(version) {
 	return function (generator, {templateLanguage}) {
-		if (templateLanguage == 'vm') {
+		if (templateLanguage === 'vm') {
 			if (version === '7.0') {
 				generator.log(
 					chalk.yellow(
diff --git a/maintenance/projects/js-themes-toolkit-v8-x/packages/liferay-theme-tasks/lib/prompts/__tests__/prompt_util.test.js b/maintenance/projects/js-themes-toolkit-v8-x/packages/liferay-theme-tasks/lib/prompts/__tests__/prompt_util.test.js
index f0a9af8d8d..4a8aef046b 100644
--- a/maintenance/projects/js-themes-toolkit-v8-x/packages/liferay-theme-tasks/lib/prompts/__tests__/prompt_util.test.js
+++ b/maintenance/projects/js-themes-toolkit-v8-x/packages/liferay-theme-tasks/lib/prompts/__tests__/prompt_util.test.js
@@ -58,7 +58,7 @@ it('formatThemeletSelection should format themelet selection retrieved from getM
 it('getListType should get listType based on environment', () => {
 	const listType = promptUtil.getListType();
 
-	expect(listType == 'list' || listType == 'rawlist').toBe(true);
+	expect(listType === 'list' || listType === 'rawlist').toBe(true);
 });
 
 it('getModuleChoices should get module choices that are appropriate for extend type', () => {
@@ -80,7 +80,7 @@ it('getModuleChoices should get module choices that are appropriate for extend t
 		const number = index + 1;
 		const name = 'themelet-' + number;
 
-		if (number == 1) {
+		if (number === 1) {
 			expect(item.name).toBe(name + ' (selected)');
 		}
 
@@ -108,7 +108,7 @@ it('getModuleChoices should get module choices that are appropriate for extend t
 		const number = index + 1;
 		const name = 'themelet-' + number;
 
-		if (number == 1) {
+		if (number === 1) {
 			expect(item.checked).toBe(true);
 		}
 		else {
diff --git a/maintenance/projects/js-themes-toolkit-v8-x/packages/liferay-theme-tasks/test/util.js b/maintenance/projects/js-themes-toolkit-v8-x/packages/liferay-theme-tasks/test/util.js
index c0219f4084..feb7dfe6f0 100644
--- a/maintenance/projects/js-themes-toolkit-v8-x/packages/liferay-theme-tasks/test/util.js
+++ b/maintenance/projects/js-themes-toolkit-v8-x/packages/liferay-theme-tasks/test/util.js
@@ -46,7 +46,7 @@ expect.extend({
 					pass = false;
 					message = `Path '${path}' is not a folder`;
 				}
-				else if (fs.readdirSync(path).length == 0) {
+				else if (fs.readdirSync(path).length === 0) {
 					pass = false;
 					message = `Folder '${path}' is empty`;
 				}
@@ -70,7 +70,7 @@ expect.extend({
 					pass = false;
 					message = `Path '${path}' is not a folder`;
 				}
-				else if (fs.readdirSync(path).length != 0) {
+				else if (fs.readdirSync(path).length !== 0) {
 					pass = false;
 					message = `Folder '${path}' is not empty`;
 				}
@@ -321,7 +321,7 @@ function cleanTempTheme(themeName, version, component, initCwd) {
 
 	cleanDirectory(tempPath);
 
-	if (initCwd != null) {
+	if (initCwd !== null && initCwd !== undefined) {
 		process.chdir(initCwd);
 	}
 }
diff --git a/maintenance/projects/js-themes-toolkit-v9-x/packages/generator-liferay-theme/lib/LayoutCreator.js b/maintenance/projects/js-themes-toolkit-v9-x/packages/generator-liferay-theme/lib/LayoutCreator.js
index 61ed56bba5..4fd9997f99 100644
--- a/maintenance/projects/js-themes-toolkit-v9-x/packages/generator-liferay-theme/lib/LayoutCreator.js
+++ b/maintenance/projects/js-themes-toolkit-v9-x/packages/generator-liferay-theme/lib/LayoutCreator.js
@@ -29,7 +29,7 @@ inquirer.prompt.prompts.list.prototype.render = function () {
 	var choices = _.reduce(
 		this.opt.choices.choices,
 		(result, item) => {
-			if (item.type != 'separator') {
+			if (item.type !== 'separator') {
 				result.push(item);
 			}
 
@@ -106,16 +106,16 @@ LayoutCreator.prototype = {
 	_afterPromptFinishRow(answers, cb) {
 		var finish = answers.finish;
 
-		if (finish == 'add') {
+		if (finish === 'add') {
 			this._promptRow(cb);
 		}
-		else if (finish == 'insert') {
+		else if (finish === 'insert') {
 			this._promptInsertRow(cb);
 		}
-		else if (answers.finish == 'finish') {
+		else if (answers.finish === 'finish') {
 			cb(null);
 		}
-		else if (finish == 'remove') {
+		else if (finish === 'remove') {
 			this._promptRemoveRow(cb);
 		}
 	},
diff --git a/maintenance/projects/js-themes-toolkit-v9-x/packages/generator-liferay-theme/lib/__tests__/LayoutCreator.test.js b/maintenance/projects/js-themes-toolkit-v9-x/packages/generator-liferay-theme/lib/__tests__/LayoutCreator.test.js
index 68b9f6fa82..9c8516d5a7 100644
--- a/maintenance/projects/js-themes-toolkit-v9-x/packages/generator-liferay-theme/lib/__tests__/LayoutCreator.test.js
+++ b/maintenance/projects/js-themes-toolkit-v9-x/packages/generator-liferay-theme/lib/__tests__/LayoutCreator.test.js
@@ -500,7 +500,7 @@ describe('LayoutCreator', () => {
 			_.forEach(choices, (choice, index) => {
 				index = index + 1;
 
-				if (index % 2 == 0) {
+				if (index % 2 === 0) {
 					assert.equal(choice.type, 'separator');
 					assert.equal(
 						stripAnsi(choice.line),
@@ -518,7 +518,7 @@ describe('LayoutCreator', () => {
 				}
 			});
 
-			assert(choices[choices.length - 1].type != 'separator');
+			assert(choices[choices.length - 1].type !== 'separator');
 
 			while (prototype.rows.length < 7) {
 				prototype.rows.push({
@@ -560,7 +560,7 @@ describe('LayoutCreator', () => {
 			_.forEach(choices, (choice, index) => {
 				index = index + 1;
 
-				if (index % 2 == 0) {
+				if (index % 2 === 0) {
 					assert.equal(choice.value, choiceValue);
 					assert.equal(
 						stripAnsi(choice.name),
@@ -578,7 +578,7 @@ describe('LayoutCreator', () => {
 				}
 			});
 
-			assert(choices[choices.length - 1].type == 'separator');
+			assert(choices[choices.length - 1].type === 'separator');
 
 			while (prototype.rows.length < 7) {
 				prototype.rows.push({
diff --git a/maintenance/projects/js-themes-toolkit-v9-x/packages/liferay-theme-tasks/index.js b/maintenance/projects/js-themes-toolkit-v9-x/packages/liferay-theme-tasks/index.js
index ca17b6d95e..7015af767e 100644
--- a/maintenance/projects/js-themes-toolkit-v9-x/packages/liferay-theme-tasks/index.js
+++ b/maintenance/projects/js-themes-toolkit-v9-x/packages/liferay-theme-tasks/index.js
@@ -47,7 +47,7 @@ function register(options) {
 	store.set('changedFile');
 
 	globby.sync([path.resolve(__dirname, 'tasks/**/*')]).forEach((item) => {
-		if (item.indexOf('__tests__') == -1) {
+		if (item.indexOf('__tests__') === -1) {
 			// eslint-disable-next-line @liferay/no-dynamic-require
 			require(item)(options);
 		}
diff --git a/maintenance/projects/js-themes-toolkit-v9-x/packages/liferay-theme-tasks/lib/prompts/__tests__/prompt_util.test.js b/maintenance/projects/js-themes-toolkit-v9-x/packages/liferay-theme-tasks/lib/prompts/__tests__/prompt_util.test.js
index f0a9af8d8d..4a8aef046b 100644
--- a/maintenance/projects/js-themes-toolkit-v9-x/packages/liferay-theme-tasks/lib/prompts/__tests__/prompt_util.test.js
+++ b/maintenance/projects/js-themes-toolkit-v9-x/packages/liferay-theme-tasks/lib/prompts/__tests__/prompt_util.test.js
@@ -58,7 +58,7 @@ it('formatThemeletSelection should format themelet selection retrieved from getM
 it('getListType should get listType based on environment', () => {
 	const listType = promptUtil.getListType();
 
-	expect(listType == 'list' || listType == 'rawlist').toBe(true);
+	expect(listType === 'list' || listType === 'rawlist').toBe(true);
 });
 
 it('getModuleChoices should get module choices that are appropriate for extend type', () => {
@@ -80,7 +80,7 @@ it('getModuleChoices should get module choices that are appropriate for extend t
 		const number = index + 1;
 		const name = 'themelet-' + number;
 
-		if (number == 1) {
+		if (number === 1) {
 			expect(item.name).toBe(name + ' (selected)');
 		}
 
@@ -108,7 +108,7 @@ it('getModuleChoices should get module choices that are appropriate for extend t
 		const number = index + 1;
 		const name = 'themelet-' + number;
 
-		if (number == 1) {
+		if (number === 1) {
 			expect(item.checked).toBe(true);
 		}
 		else {
diff --git a/maintenance/projects/js-themes-toolkit-v9-x/packages/liferay-theme-tasks/lib/r2/liferay-r2/css-parse.js b/maintenance/projects/js-themes-toolkit-v9-x/packages/liferay-theme-tasks/lib/r2/liferay-r2/css-parse.js
index 47e19edb32..9afd7927ec 100644
--- a/maintenance/projects/js-themes-toolkit-v9-x/packages/liferay-theme-tasks/lib/r2/liferay-r2/css-parse.js
+++ b/maintenance/projects/js-themes-toolkit-v9-x/packages/liferay-theme-tasks/lib/r2/liferay-r2/css-parse.js
@@ -126,7 +126,7 @@ module.exports = function (css, options) {
 		comments(rules);
 		while (
 			css.length &&
-			css.charAt(0) != '}' &&
+			css.charAt(0) !== '}' &&
 			(node = atrule() || rule())
 		) {
 			rules.push(node);
@@ -180,14 +180,14 @@ module.exports = function (css, options) {
 
 	function comment() {
 		var pos = position();
-		if ('/' != css.charAt(0) || '*' != css.charAt(1)) {
+		if ('/' !== css.charAt(0) || '*' !== css.charAt(1)) {
 			return;
 		}
 
 		var i = 2;
 		while (
-			null != css.charAt(i) &&
-			('*' != css.charAt(i) || '/' != css.charAt(i + 1))
+			null !== css.charAt(i) &&
+			('*' !== css.charAt(i) || '/' !== css.charAt(i + 1))
 		) {
 			++i;
 		}
@@ -599,7 +599,7 @@ module.exports = function (css, options) {
 	 */
 
 	function atrule() {
-		if (css[0] != '@') {
+		if (css[0] !== '@') {
 			return;
 		}
 
diff --git a/maintenance/projects/js-themes-toolkit-v9-x/packages/liferay-theme-tasks/lib/r2/liferay-r2/index.js b/maintenance/projects/js-themes-toolkit-v9-x/packages/liferay-theme-tasks/lib/r2/liferay-r2/index.js
index 17bc786c96..9aae0a42cc 100644
--- a/maintenance/projects/js-themes-toolkit-v9-x/packages/liferay-theme-tasks/lib/r2/liferay-r2/index.js
+++ b/maintenance/projects/js-themes-toolkit-v9-x/packages/liferay-theme-tasks/lib/r2/liferay-r2/index.js
@@ -15,7 +15,7 @@ function quad(v, m) {
 
 	// 1px 2px 3px 4px => 1px 4px 3px 2px
 
-	if ((m = v.trim().split(/\s+(?=[^)]*(?:[(]|$))/)) && m.length == 4) {
+	if ((m = v.trim().split(/\s+(?=[^)]*(?:[(]|$))/)) && m.length === 4) {
 		return [m[0], m[3], m[2], m[1]].join(' ');
 	}
 
@@ -29,10 +29,10 @@ function quad_radius(v) {
 	// since border-radius: top-left top-right bottom-right bottom-left
 	// will be border-radius: top-right top-left bottom-left bottom-right
 
-	if (m && m.length == 4) {
+	if (m && m.length === 4) {
 		return [m[1], m[0], m[3], m[2]].join(' ');
 	}
-	else if (m && m.length == 3) {
+	else if (m && m.length === 3) {
 
 		// super odd how this works
 		// 5px 10px 20px => 10px 5px 10px 20px
@@ -67,10 +67,10 @@ function bgPosition(v) {
 		v = v.replace(/\bright\b/, 'left');
 	}
 	var m = v.trim().split(/\s+/);
-	if (m && m.length == 1 && v.match(/(\d+)([a-z]{2}|%)/)) {
+	if (m && m.length === 1 && v.match(/(\d+)([a-z]{2}|%)/)) {
 		v = 'right ' + v;
 	}
-	if (m && m.length == 2 && m[0].match(/\d+%/)) {
+	if (m && m.length === 2 && m[0].match(/\d+%/)) {
 
 		// 30% => 70% (100 - x)
 
diff --git a/maintenance/projects/js-themes-toolkit-v9-x/packages/liferay-theme-tasks/plugin/lib/init_prompt.js b/maintenance/projects/js-themes-toolkit-v9-x/packages/liferay-theme-tasks/plugin/lib/init_prompt.js
index 16c077750a..62df597991 100644
--- a/maintenance/projects/js-themes-toolkit-v9-x/packages/liferay-theme-tasks/plugin/lib/init_prompt.js
+++ b/maintenance/projects/js-themes-toolkit-v9-x/packages/liferay-theme-tasks/plugin/lib/init_prompt.js
@@ -97,7 +97,7 @@ InitPrompt.prototype = {
 		if (appServerPath) {
 			var baseName = path.basename(appServerPath);
 
-			if (baseName != 'webapps') {
+			if (baseName !== 'webapps') {
 				appServerPath = getPath(answers).join(appServerPath, 'webapps');
 			}
 
diff --git a/maintenance/projects/js-themes-toolkit-v9-x/packages/liferay-theme-tasks/plugin/lib/register_hooks.js b/maintenance/projects/js-themes-toolkit-v9-x/packages/liferay-theme-tasks/plugin/lib/register_hooks.js
index afa71e2d18..13c950c5ec 100644
--- a/maintenance/projects/js-themes-toolkit-v9-x/packages/liferay-theme-tasks/plugin/lib/register_hooks.js
+++ b/maintenance/projects/js-themes-toolkit-v9-x/packages/liferay-theme-tasks/plugin/lib/register_hooks.js
@@ -101,7 +101,7 @@ RegisterHooks.prototype = {
 				var when = data[0];
 				var taskName = data[1];
 
-				if (when != 'after' && when != 'before') {
+				if (when !== 'after' && when !== 'before') {
 					return taskHookMap;
 				}
 
diff --git a/maintenance/projects/js-themes-toolkit-v9-x/packages/liferay-theme-tasks/plugin/tasks/version.js b/maintenance/projects/js-themes-toolkit-v9-x/packages/liferay-theme-tasks/plugin/tasks/version.js
index d70322564e..ccfe393c03 100644
--- a/maintenance/projects/js-themes-toolkit-v9-x/packages/liferay-theme-tasks/plugin/tasks/version.js
+++ b/maintenance/projects/js-themes-toolkit-v9-x/packages/liferay-theme-tasks/plugin/tasks/version.js
@@ -39,7 +39,7 @@ module.exports = function (options) {
 
 				var moduleVersion = result.match(REGEX_MODULE_VERSION);
 
-				if (moduleVersion && moduleVersion[1] != npmPackageVersion) {
+				if (moduleVersion && moduleVersion[1] !== npmPackageVersion) {
 					result = result.replace(
 						REGEX_MODULE_VERSION,
 						(_match, _g1) => {
diff --git a/maintenance/projects/js-themes-toolkit-v9-x/packages/liferay-theme-tasks/test/util.js b/maintenance/projects/js-themes-toolkit-v9-x/packages/liferay-theme-tasks/test/util.js
index 5b20c1430b..c25c44cb84 100644
--- a/maintenance/projects/js-themes-toolkit-v9-x/packages/liferay-theme-tasks/test/util.js
+++ b/maintenance/projects/js-themes-toolkit-v9-x/packages/liferay-theme-tasks/test/util.js
@@ -26,7 +26,7 @@ expect.extend({
 					pass = false;
 					message = `Path '${path}' is not a folder`;
 				}
-				else if (fs.readdirSync(path).length == 0) {
+				else if (fs.readdirSync(path).length === 0) {
 					pass = false;
 					message = `Folder '${path}' is empty`;
 				}
@@ -50,7 +50,7 @@ expect.extend({
 					pass = false;
 					message = `Path '${path}' is not a folder`;
 				}
-				else if (fs.readdirSync(path).length != 0) {
+				else if (fs.readdirSync(path).length !== 0) {
 					pass = false;
 					message = `Folder '${path}' is not empty`;
 				}
@@ -303,7 +303,7 @@ function cleanTempTheme(themeName, version, component, initCwd) {
 
 	cleanDirectory(tempPath);
 
-	if (initCwd != null) {
+	if (initCwd !== null && initCwd !== undefined) {
 		process.chdir(initCwd);
 	}
 }
diff --git a/maintenance/projects/js-themes-toolkit-v9-x/scripts/qa.js b/maintenance/projects/js-themes-toolkit-v9-x/scripts/qa.js
index beeccabef0..cc6e0ef957 100644
--- a/maintenance/projects/js-themes-toolkit-v9-x/scripts/qa.js
+++ b/maintenance/projects/js-themes-toolkit-v9-x/scripts/qa.js
@@ -201,7 +201,7 @@ function spawn(cmd, args, options = {}) {
 		...options,
 	});
 
-	if (proc.error || proc.status != 0) {
+	if (proc.error || proc.status !== 0) {
 		process.exit(1);
 	}
 }
diff --git a/maintenance/projects/js-toolkit/packages/babel-plugin-add-module-metadata/src/index.js b/maintenance/projects/js-toolkit/packages/babel-plugin-add-module-metadata/src/index.js
index 6e7b6e2b38..0ea14a2659 100644
--- a/maintenance/projects/js-toolkit/packages/babel-plugin-add-module-metadata/src/index.js
+++ b/maintenance/projects/js-toolkit/packages/babel-plugin-add-module-metadata/src/index.js
@@ -65,7 +65,7 @@ function maybeAddEsModuleFlagCase1(t, path, state) {
 
 	const args = parent.arguments;
 
-	if (args.length != 3) {
+	if (args.length !== 3) {
 		return false;
 	}
 
diff --git a/maintenance/projects/js-toolkit/packages/babel-plugin-normalize-requires/src/index.js b/maintenance/projects/js-toolkit/packages/babel-plugin-normalize-requires/src/index.js
index cbeaebc9dc..e42c32c2e4 100644
--- a/maintenance/projects/js-toolkit/packages/babel-plugin-normalize-requires/src/index.js
+++ b/maintenance/projects/js-toolkit/packages/babel-plugin-normalize-requires/src/index.js
@@ -16,7 +16,7 @@ export default function ({types: t}) {
 				exit(path, state) {
 					const {node} = path;
 
-					if (node.name == 'require') {
+					if (node.name === 'require') {
 						const parent = path.parent;
 
 						if (t.isCallExpression(parent)) {
@@ -85,13 +85,13 @@ export default function ({types: t}) {
 function isPackageName(moduleName) {
 	const firstSlashIndex = moduleName.indexOf('/');
 
-	if (firstSlashIndex == -1) {
+	if (firstSlashIndex === -1) {
 		return true;
 	}
 
 	const restOfModuleName = moduleName.substring(firstSlashIndex + 1);
 
-	if (moduleName.startsWith('@') && restOfModuleName.indexOf('/') == -1) {
+	if (moduleName.startsWith('@') && restOfModuleName.indexOf('/') === -1) {
 		return true;
 	}
 
diff --git a/maintenance/projects/js-toolkit/packages/babel-plugin-wrap-modules-amd/src/index.js b/maintenance/projects/js-toolkit/packages/babel-plugin-wrap-modules-amd/src/index.js
index eab7066efe..2d7f6f7f8d 100644
--- a/maintenance/projects/js-toolkit/packages/babel-plugin-wrap-modules-amd/src/index.js
+++ b/maintenance/projects/js-toolkit/packages/babel-plugin-wrap-modules-amd/src/index.js
@@ -52,7 +52,7 @@ export default function ({types: t}) {
 				if (
 					!t.isCallExpression(parent) ||
 					parent.callee !== node ||
-					parent.arguments.length != 1
+					parent.arguments.length !== 1
 				) {
 					return;
 				}
@@ -134,7 +134,7 @@ export default function ({types: t}) {
 
 					node.body = defineNode;
 
-					if (dependencies.length == 0) {
+					if (dependencies.length === 0) {
 						log.info(
 							'wrap-modules-amd',
 							'No dependencies detected'
diff --git a/maintenance/projects/js-toolkit/packages/generator-liferay-js/src/app/index.js b/maintenance/projects/js-toolkit/packages/generator-liferay-js/src/app/index.js
index 7ebb66a2ed..b2bb269867 100644
--- a/maintenance/projects/js-toolkit/packages/generator-liferay-js/src/app/index.js
+++ b/maintenance/projects/js-toolkit/packages/generator-liferay-js/src/app/index.js
@@ -56,7 +56,7 @@ export default class extends Generator {
 	_findTargets() {
 		const tds = fs
 			.readdirSync(path.join(__dirname, '..'))
-			.filter((file) => file.indexOf('target-') == 0)
+			.filter((file) => file.indexOf('target-') === 0)
 			.map((target) => target.replace('target-', ''))
 			.map((target) => ({
 				...getTargetDescription(target),
diff --git a/maintenance/projects/js-toolkit/packages/liferay-npm-build-support/src/loader/util.ts b/maintenance/projects/js-toolkit/packages/liferay-npm-build-support/src/loader/util.ts
index 6ff3a6de00..1c2f9e92a1 100644
--- a/maintenance/projects/js-toolkit/packages/liferay-npm-build-support/src/loader/util.ts
+++ b/maintenance/projects/js-toolkit/packages/liferay-npm-build-support/src/loader/util.ts
@@ -52,7 +52,7 @@ export function removeWebpackHash(filePath: string): string {
 		}
 	}
 
-	if (hashIndex == -1) {
+	if (hashIndex === -1) {
 		return filePath;
 	}
 
diff --git a/maintenance/projects/js-toolkit/packages/liferay-npm-build-support/src/portal/portal-shell.js b/maintenance/projects/js-toolkit/packages/liferay-npm-build-support/src/portal/portal-shell.js
index 434ada68e0..42b0fb142b 100644
--- a/maintenance/projects/js-toolkit/packages/liferay-npm-build-support/src/portal/portal-shell.js
+++ b/maintenance/projects/js-toolkit/packages/liferay-npm-build-support/src/portal/portal-shell.js
@@ -38,7 +38,7 @@ export default class extends GogoShell {
 	 */
 	start(bundleId) {
 		return this.sendCommand(`start ${bundleId}`).then((response) => {
-			if (response.length != 0) {
+			if (response.length !== 0) {
 				throw new Error(response);
 			}
 
@@ -53,7 +53,7 @@ export default class extends GogoShell {
 	 */
 	stop(bundleId) {
 		return this.sendCommand(`stop ${bundleId}`).then((response) => {
-			if (response.length != 0) {
+			if (response.length !== 0) {
 				throw new Error(response);
 			}
 
@@ -68,7 +68,7 @@ export default class extends GogoShell {
 	 */
 	uninstall(bundleId) {
 		return this.sendCommand(`uninstall ${bundleId}`).then((response) => {
-			if (response.length != 0) {
+			if (response.length !== 0) {
 				throw new Error(response);
 			}
 
@@ -104,7 +104,7 @@ export default class extends GogoShell {
 			const lines = response.split('\n');
 
 			const bundleLine = lines.find(
-				(line) => line.indexOf(`|${symbolicName} (${version})`) != -1
+				(line) => line.indexOf(`|${symbolicName} (${version})`) !== -1
 			);
 
 			if (!bundleLine) {
diff --git a/maintenance/projects/js-toolkit/packages/liferay-npm-build-support/src/scripts/translate.js b/maintenance/projects/js-toolkit/packages/liferay-npm-build-support/src/scripts/translate.js
index bdf1767ae4..9affc64e5c 100644
--- a/maintenance/projects/js-toolkit/packages/liferay-npm-build-support/src/scripts/translate.js
+++ b/maintenance/projects/js-toolkit/packages/liferay-npm-build-support/src/scripts/translate.js
@@ -29,7 +29,7 @@ export default function () {
 		subscriptionKey = cfg.getTranslatorTextKey();
 	}
 
-	if (!subscriptionKey || subscriptionKey == '') {
+	if (!subscriptionKey) {
 		console.error(
 			'-------------------------------------------------------------\n' +
 				'    🛑 Microsoft Translator credentials not set 🛑\n\n' +
@@ -49,10 +49,10 @@ export default function () {
 	const localizationFileMap = project.l10n.localizationFileMap;
 
 	const locales = Object.keys(localizationFileMap).filter(
-		(locale) => locale != 'default'
+		(locale) => locale !== 'default'
 	);
 
-	if (locales.length == 0) {
+	if (locales.length === 0) {
 		console.log(
 			'No locales found: nothing to translate.\n\n' +
 				'You can edit your .npmbuildrc file to add new supported ' +
@@ -127,7 +127,7 @@ export function addMissingTranslations(translation, labels) {
 		});
 
 		console.log(
-			count == 0
+			count === 0
 				? `  · No missing translations found for locale ${locale}`
 				: `  · Added ${count} missing translations for locale ${locale}`
 		);
@@ -228,7 +228,7 @@ function showMissingSupportedLocales() {
 	const supportedLocales = cfg.getSupportedLocales();
 
 	const missingLocales = availableLocales.filter(
-		(locale) => supportedLocales.indexOf(locale) == -1
+		(locale) => supportedLocales.indexOf(locale) === -1
 	);
 
 	if (missingLocales.length > 0) {
@@ -252,7 +252,7 @@ function createMissingSupportedLocalesFiles() {
 	const supportedLocales = cfg.getSupportedLocales();
 
 	const missingLocales = supportedLocales.filter(
-		(locale) => project.l10n.availableLocales.indexOf(locale) == -1
+		(locale) => project.l10n.availableLocales.indexOf(locale) === -1
 	);
 
 	if (missingLocales.length > 0) {
@@ -338,7 +338,7 @@ function translate(subscriptionKey, locales, texts) {
 						if (err) {
 							reject(err);
 						}
-						else if (response.statusCode != 200) {
+						else if (response.statusCode !== 200) {
 							reject({
 								code: response.statusCode,
 								message: response.statusMessage,
diff --git a/maintenance/projects/js-toolkit/packages/liferay-npm-build-support/src/util.js b/maintenance/projects/js-toolkit/packages/liferay-npm-build-support/src/util.js
index 48058dc3ee..f86a3b9359 100644
--- a/maintenance/projects/js-toolkit/packages/liferay-npm-build-support/src/util.js
+++ b/maintenance/projects/js-toolkit/packages/liferay-npm-build-support/src/util.js
@@ -70,7 +70,7 @@ export function runNodeModulesBin(script, args = []) {
 	if (proc.error) {
 		throw proc.error;
 	}
-	else if (proc.status != 0) {
+	else if (proc.status !== 0) {
 		throw new Error(
 			`Node modules binary '${script}' finished with status ${proc.status}`
 		);
@@ -102,7 +102,7 @@ export function runPkgJsonScript(script, args = []) {
 	if (proc.error) {
 		throw proc.error;
 	}
-	else if (proc.status != 0) {
+	else if (proc.status !== 0) {
 		throw new Error(
 			`Package script '${script}' finished with status ${proc.status}`
 		);
diff --git a/maintenance/projects/js-toolkit/packages/liferay-npm-build-tools-common/src/format.ts b/maintenance/projects/js-toolkit/packages/liferay-npm-build-tools-common/src/format.ts
index 67371b1699..1b053701a1 100644
--- a/maintenance/projects/js-toolkit/packages/liferay-npm-build-tools-common/src/format.ts
+++ b/maintenance/projects/js-toolkit/packages/liferay-npm-build-tools-common/src/format.ts
@@ -19,8 +19,8 @@ const lrFormatOpts = (process.env['LR_FORMAT_OPTS'] || '').split(',');
 
 /** Unrolled formatting options */
 const opts = {
-	noColors: lrFormatOpts.indexOf('no-colors') != -1,
-	noDecorations: lrFormatOpts.indexOf('no-decorations') != -1,
+	noColors: lrFormatOpts.indexOf('no-colors') !== -1,
+	noDecorations: lrFormatOpts.indexOf('no-decorations') !== -1,
 };
 
 const verbatim = (...args) => args.join(' ');
diff --git a/maintenance/projects/js-toolkit/packages/liferay-npm-build-tools-common/src/imports.ts b/maintenance/projects/js-toolkit/packages/liferay-npm-build-tools-common/src/imports.ts
index 0a740e34c7..077e97e385 100644
--- a/maintenance/projects/js-toolkit/packages/liferay-npm-build-tools-common/src/imports.ts
+++ b/maintenance/projects/js-toolkit/packages/liferay-npm-build-tools-common/src/imports.ts
@@ -91,7 +91,7 @@ export function normalizeImportsConfig(
 
 					delete normalized[namespace][pkgName];
 
-					if (Object.keys(normalized[namespace]).length == 0) {
+					if (Object.keys(normalized[namespace]).length === 0) {
 						delete normalized[namespace];
 					}
 				}
diff --git a/maintenance/projects/js-toolkit/packages/liferay-npm-build-tools-common/src/namespace.ts b/maintenance/projects/js-toolkit/packages/liferay-npm-build-tools-common/src/namespace.ts
index 99094e965a..158e9ac8b5 100644
--- a/maintenance/projects/js-toolkit/packages/liferay-npm-build-tools-common/src/namespace.ts
+++ b/maintenance/projects/js-toolkit/packages/liferay-npm-build-tools-common/src/namespace.ts
@@ -11,7 +11,9 @@ import * as mod from './modules';
  * @return true if the module is namespaced
  */
 export function isNamespaced(moduleName: string): boolean {
-	return getNamespace(moduleName) != null;
+	const nameSpace = getNamespace(moduleName);
+
+	return nameSpace !== null && nameSpace !== undefined;
 }
 
 /**
@@ -31,7 +33,7 @@ export function addNamespace(
 	const moduleNamespace = getNamespace(moduleName);
 	const namespace = makeNamespace({name});
 
-	if (moduleNamespace != null) {
+	if (moduleNamespace !== null) {
 		if (moduleNamespace !== namespace) {
 			if (!allowOverride) {
 				throw new Error(
@@ -70,7 +72,7 @@ export function addNamespace(
 export function removeNamespace(moduleName: string): string {
 	const namespace = getNamespace(moduleName);
 
-	if (namespace != null) {
+	if (namespace !== null && namespace !== undefined) {
 		if (moduleName.startsWith('@')) {
 			return moduleName.replace(`@${namespace}`, '@');
 		}
diff --git a/maintenance/projects/js-toolkit/packages/liferay-npm-build-tools-common/src/pkg-desc.ts b/maintenance/projects/js-toolkit/packages/liferay-npm-build-tools-common/src/pkg-desc.ts
index fdd02d9fb9..b12a515896 100644
--- a/maintenance/projects/js-toolkit/packages/liferay-npm-build-tools-common/src/pkg-desc.ts
+++ b/maintenance/projects/js-toolkit/packages/liferay-npm-build-tools-common/src/pkg-desc.ts
@@ -99,7 +99,7 @@ export default class PkgDesc {
 	}
 
 	get isRoot(): boolean {
-		return this.id == PkgDesc.ROOT_ID;
+		return this.id === PkgDesc.ROOT_ID;
 	}
 
 	private _clean: boolean;
diff --git a/maintenance/projects/js-toolkit/packages/liferay-npm-bundler-loader-css-loader/src/index.js b/maintenance/projects/js-toolkit/packages/liferay-npm-bundler-loader-css-loader/src/index.js
index be802fe146..842315fe6a 100644
--- a/maintenance/projects/js-toolkit/packages/liferay-npm-bundler-loader-css-loader/src/index.js
+++ b/maintenance/projects/js-toolkit/packages/liferay-npm-bundler-loader-css-loader/src/index.js
@@ -92,7 +92,7 @@ function getHref(filePath, extension, pathModule, namespaceDependencies) {
 		webContextPath = webContextPathLine.substring(16).trim();
 	}
 
-	if (filePath.indexOf(`node_modules${path.sep}`) != -1) {
+	if (filePath.indexOf(`node_modules${path.sep}`) !== -1) {
 		const pathParts = filePath.split(path.sep);
 
 		const projectNameIndex = lastIndexOf(pathParts, 'node_modules') + 1;
@@ -156,7 +156,7 @@ function getHref(filePath, extension, pathModule, namespaceDependencies) {
 	if (extension !== undefined) {
 		const extname = path.extname(filePath);
 
-		if (extname == '') {
+		if (!extname) {
 			filePath = `${filePath}.${extension}`;
 		}
 		else {
diff --git a/maintenance/projects/js-toolkit/packages/liferay-npm-bundler-loader-sass-loader/src/index.js b/maintenance/projects/js-toolkit/packages/liferay-npm-bundler-loader-sass-loader/src/index.js
index fa29439f94..e3d27d1530 100644
--- a/maintenance/projects/js-toolkit/packages/liferay-npm-bundler-loader-sass-loader/src/index.js
+++ b/maintenance/projects/js-toolkit/packages/liferay-npm-bundler-loader-sass-loader/src/index.js
@@ -67,7 +67,7 @@ function changeFilePathExtension(context) {
 
 	const extname = path.extname(filePath);
 
-	if (extname == '') {
+	if (!extname) {
 		filePath = `${filePath}.css`;
 	}
 	else {
diff --git a/maintenance/projects/js-toolkit/packages/liferay-npm-bundler-plugin-inject-peer-dependencies/src/index.js b/maintenance/projects/js-toolkit/packages/liferay-npm-bundler-plugin-inject-peer-dependencies/src/index.js
index 53029ea7ce..961d649b33 100644
--- a/maintenance/projects/js-toolkit/packages/liferay-npm-bundler-plugin-inject-peer-dependencies/src/index.js
+++ b/maintenance/projects/js-toolkit/packages/liferay-npm-bundler-plugin-inject-peer-dependencies/src/index.js
@@ -29,7 +29,7 @@ export default function ({config, log, pkg, source}, {pkgJson}) {
 			const code = fs.readFileSync(file.asNative);
 			const defineCallOffset = code.indexOf(defineCall);
 
-			if (defineCallOffset != -1) {
+			if (defineCallOffset !== -1) {
 				const funOffset = code.indexOf(')', defineCallOffset);
 				let defineCallLine;
 
@@ -175,7 +175,7 @@ function removeModuleName(line) {
 function extractDependencies(line) {
 	const indexOfClose = line.indexOf(']');
 
-	if (!line.startsWith('[') || indexOfClose == -1) {
+	if (!line.startsWith('[') || indexOfClose === -1) {
 		return [];
 	}
 
diff --git a/maintenance/projects/js-toolkit/packages/liferay-npm-bundler-plugin-replace-browser-modules/src/index.ts b/maintenance/projects/js-toolkit/packages/liferay-npm-bundler-plugin-replace-browser-modules/src/index.ts
index 00a90006d5..5255b1c612 100644
--- a/maintenance/projects/js-toolkit/packages/liferay-npm-bundler-plugin-replace-browser-modules/src/index.ts
+++ b/maintenance/projects/js-toolkit/packages/liferay-npm-bundler-plugin-replace-browser-modules/src/index.ts
@@ -161,13 +161,13 @@ export function reportAndResolveCollisions(
 			absFromPosixPath
 		].filter((alias) => {
 			const included =
-				alias.fromType != AliasFromType.EXTERNAL ||
+				alias.fromType !== AliasFromType.EXTERNAL ||
 				!moduleExists(absFromPosixPath);
 
 			if (!included) {
 				const rootRelDir = absRootDir.relative(alias.absDir);
 				const where =
-					rootRelDir.asPosix == ''
+					rootRelDir.asPosix === ''
 						? "project's root folder"
 						: `'${rootRelDir.asPosix}'`;
 
@@ -186,7 +186,7 @@ export function reportAndResolveCollisions(
 	// Remove empty aliases
 
 	Object.keys(unrolledAliasesMap).forEach((absFromPath) => {
-		if (unrolledAliasesMap[absFromPath].length == 0) {
+		if (unrolledAliasesMap[absFromPath].length === 0) {
 			delete unrolledAliasesMap[absFromPath];
 		}
 	});
@@ -213,7 +213,7 @@ export function reportAndResolveCollisions(
 
 			const rootRelDir = absRootDir.relative(alias.absDir);
 			const where =
-				rootRelDir.asPosix == ''
+				rootRelDir.asPosix === ''
 					? "project's root folder"
 					: `'${rootRelDir.asPosix}'`;
 
diff --git a/maintenance/projects/js-toolkit/packages/liferay-npm-bundler-plugin-resolve-linked-dependencies/src/index.js b/maintenance/projects/js-toolkit/packages/liferay-npm-bundler-plugin-resolve-linked-dependencies/src/index.js
index 3bec5b5256..55c621d331 100644
--- a/maintenance/projects/js-toolkit/packages/liferay-npm-bundler-plugin-resolve-linked-dependencies/src/index.js
+++ b/maintenance/projects/js-toolkit/packages/liferay-npm-bundler-plugin-resolve-linked-dependencies/src/index.js
@@ -11,11 +11,14 @@ import semver from 'semver';
  * @return {void}
  */
 export default function ({log}, {pkgJson}) {
-	if (pkgJson.dependencies != null) {
+	if (pkgJson.dependencies !== null && pkgJson.dependencies !== undefined) {
 		Object.keys(pkgJson.dependencies).forEach((name) => {
 			const link = pkgJson.dependencies[name];
 
-			if (semver.validRange(link) == null) {
+			if (
+				semver.validRange(link) === null ||
+				semver.validRange(link) === undefined
+			) {
 				const depPkgJsonPath = path.join(
 					'node_modules',
 					name,
diff --git a/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/__tests__/dependencies.test.js b/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/__tests__/dependencies.test.js
index 58d7040932..f597f7d8b1 100644
--- a/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/__tests__/dependencies.test.js
+++ b/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/__tests__/dependencies.test.js
@@ -37,15 +37,15 @@ expect.extend({
 
 				const invalidFields = invalidDepFields[pkgId] || {};
 
-				if (dep.id != pkgId) {
+				if (dep.id !== pkgId) {
 					invalidFields.id = `${dep.id} (expected: ${pkgId})`;
 				}
 
-				if (dep.name != pkgName) {
+				if (dep.name !== pkgName) {
 					invalidFields.name = `${dep.name} (expected: ${pkgName})`;
 				}
 
-				if (dep.version != pkgVersion) {
+				if (dep.version !== pkgVersion) {
 					invalidFields.version =
 						`${dep.version} ` + `(expected: ${pkgVersion})`;
 				}
@@ -70,7 +70,7 @@ expect.extend({
 		});
 
 		Object.keys(deps).forEach((depId) => {
-			if (pkgIds.indexOf(depId) == -1) {
+			if (pkgIds.indexOf(depId) === -1) {
 				extraDeps.push(depId);
 			}
 		});
diff --git a/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/dependencies.js b/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/dependencies.js
index e19a4afb84..a657665a1c 100644
--- a/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/dependencies.js
+++ b/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/dependencies.js
@@ -41,7 +41,7 @@ export function addPackageDependencies(
 	const pkg = new PkgDesc(
 		packageJson.name,
 		packageJson.version,
-		path.resolve(baseDirPath) == path.resolve(project.dir.asNative)
+		path.resolve(baseDirPath) === path.resolve(project.dir.asNative)
 			? null
 			: baseDirPath
 	);
@@ -65,7 +65,10 @@ export function addPackageDependencies(
 		.map((dependency) =>
 			resolveDependencyDir(baseDirPath, packageJson, dependency)
 		)
-		.filter((dependencyDir) => dependencyDir != null);
+		.filter(
+			(dependencyDir) =>
+				dependencyDir !== null && dependencyDir !== undefined
+		);
 
 	dependencyDirs.forEach((dependencyDir) => {
 		addPackageDependencies(collectedDependencies, dependencyDir);
diff --git a/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/index.ts b/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/index.ts
index e9da5eaf85..40ae0015d0 100644
--- a/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/index.ts
+++ b/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/index.ts
@@ -115,11 +115,14 @@ function run(): void {
 /** Report linked dependencies of a given package.json */
 function reportLinkedDependencies(pkgJson: object): void {
 	['dependencies', 'devDependencies'].forEach((scope) => {
-		if (pkgJson[scope] != null) {
+		if (pkgJson[scope] !== null && pkgJson[scope] !== undefined) {
 			Object.keys(pkgJson[scope]).forEach((depName) => {
 				const depVersion = pkgJson[scope][depName];
 
-				if (semver.validRange(depVersion) == null) {
+				if (
+					semver.validRange(depVersion) === null ||
+					semver.validRange(depVersion) === undefined
+				) {
 					const depPkgJsonPath = path.join(
 						'node_modules',
 						depName,
diff --git a/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/jar/index.js b/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/jar/index.js
index 5c13263ac8..be920c669c 100644
--- a/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/jar/index.js
+++ b/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/jar/index.js
@@ -295,7 +295,7 @@ function getPortletInstanceConfigurationJson() {
 	if (
 		!configurationJson.portletInstance ||
 		!configurationJson.portletInstance.fields ||
-		Object.keys(configurationJson.portletInstance.fields).length == 0
+		Object.keys(configurationJson.portletInstance.fields).length === 0
 	) {
 		return undefined;
 	}
@@ -318,7 +318,7 @@ function getSystemConfigurationJson() {
 	if (
 		!configurationJson.system ||
 		!configurationJson.system.fields ||
-		Object.keys(configurationJson.system.fields).length == 0
+		Object.keys(configurationJson.system.fields).length === 0
 	) {
 		return undefined;
 	}
diff --git a/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/jar/xml.js b/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/jar/xml.js
index e8c68d4d3f..90888edb6e 100644
--- a/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/jar/xml.js
+++ b/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/jar/xml.js
@@ -124,7 +124,7 @@ function addChild(parentNode, childName) {
 function findChild(parentNode, childName, create = false) {
 	const elements = parentNode.elements || [];
 
-	let childNode = elements.find((node) => node.name == childName);
+	let childNode = elements.find((node) => node.name === childName);
 
 	if (childNode === undefined && create) {
 		childNode = {
diff --git a/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/report/html.js b/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/report/html.js
index 1c74990d2a..692b2e5897 100644
--- a/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/report/html.js
+++ b/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/report/html.js
@@ -89,7 +89,7 @@ export function htmlDump(report) {
 									`<div title="${allFiles
 										.filter(
 											(file) =>
-												copiedFiles.indexOf(file) == -1
+												copiedFiles.indexOf(file) === -1
 										)
 										.sort()
 										.join(',')}">
@@ -556,7 +556,7 @@ function htmlTable(...args) {
 		content = content.join('\n');
 	}
 
-	if (columns.length == 0) {
+	if (columns.length === 0) {
 		return `
 			<table>
 				${content}
@@ -595,7 +595,7 @@ function htmlLogOutput(
 	rowLoggers,
 	{source} = {source: true}
 ) {
-	if (prefixCells.length != rowLoggers.length) {
+	if (prefixCells.length !== rowLoggers.length) {
 		throw new Error(
 			'The length of prefixCells and rowLoggers must be the same'
 		);
@@ -612,7 +612,7 @@ function htmlLogOutput(
 	const rows = [];
 
 	prefixCells.forEach((cells, i) => {
-		if (cells.length != prefixColumns.length) {
+		if (cells.length !== prefixColumns.length) {
 			throw new Error(
 				`Prefix cells row ${i} has an invalid length: ${cells.length}`
 			);
@@ -620,7 +620,7 @@ function htmlLogOutput(
 
 		const msgs = rowLoggers[i].messages;
 
-		if (msgs.length == 0) {
+		if (msgs.length === 0) {
 			rows.push(
 				htmlRow(`
 					${cells.map((cell) => `<td>${cell}</td>`).join(' ')}
diff --git a/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/steps/rules.js b/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/steps/rules.js
index ceb039368c..8220fb79ff 100644
--- a/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/steps/rules.js
+++ b/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/steps/rules.js
@@ -73,7 +73,7 @@ function processPackage(srcPkg) {
 function processFile(srcPkg, destPkg, prjRelPath) {
 	const loaders = project.rules.loadersForFile(prjRelPath);
 
-	if (loaders.length == 0) {
+	if (loaders.length === 0) {
 		return Promise.resolve();
 	}
 
@@ -231,7 +231,7 @@ function assertString(object, field, what) {
  * @param {object} context
  */
 function writeLoadersResult(srcPkg, destPkg, context) {
-	if (context.content != undefined) {
+	if (context.content !== undefined && context.content !== null) {
 		writeRuleFile(
 			destPkg,
 			srcPkg.dir.relative(project.dir.join(context.filePath)).asNative,
@@ -241,7 +241,7 @@ function writeLoadersResult(srcPkg, destPkg, context) {
 
 	Object.entries(context.extraArtifacts).forEach(
 		([extraPrjRelPath, content]) => {
-			if (content == undefined) {
+			if (content === undefined || content === null) {
 				return;
 			}
 
diff --git a/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/steps/transform.js b/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/steps/transform.js
index efa6410c13..b658e3959c 100644
--- a/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/steps/transform.js
+++ b/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/steps/transform.js
@@ -297,7 +297,7 @@ export function loadSourceMap(filePath) {
 
 	const url = matches[1];
 
-	if (url.indexOf('data:') == 0) {
+	if (url.indexOf('data:') === 0) {
 		const parsedData = parseDataURL(url);
 
 		if (parsedData) {
diff --git a/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/steps/util.js b/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/steps/util.js
index 6ad72731e9..35196998a3 100644
--- a/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/steps/util.js
+++ b/maintenance/projects/js-toolkit/packages/liferay-npm-bundler/src/steps/util.js
@@ -63,7 +63,7 @@ export function getDestDir(pkg) {
  *         finishes
  */
 export function iterateSerially(values, asyncProcess) {
-	if (values.length == 0) {
+	if (values.length === 0) {
 		return Promise.resolve();
 	}
 
diff --git a/maintenance/projects/js-toolkit/packages/liferay-npm-imports-checker/src/liferay-npm-imports-checker.js b/maintenance/projects/js-toolkit/packages/liferay-npm-imports-checker/src/liferay-npm-imports-checker.js
index ef3938fadf..4ca36b92a2 100644
--- a/maintenance/projects/js-toolkit/packages/liferay-npm-imports-checker/src/liferay-npm-imports-checker.js
+++ b/maintenance/projects/js-toolkit/packages/liferay-npm-imports-checker/src/liferay-npm-imports-checker.js
@@ -175,7 +175,7 @@ function checkProjects(projects) {
 	msg(0, 'Checking projects:');
 
 	Object.values(projects).forEach((project) => {
-		if (project.dir.asPosix.indexOf(cfg.getRunPath()) != 0) {
+		if (project.dir.asPosix.indexOf(cfg.getRunPath()) !== 0) {
 			return;
 		}
 
diff --git a/maintenance/projects/js-toolkit/qa/samples/packages/alias-test/scripts/test.js b/maintenance/projects/js-toolkit/qa/samples/packages/alias-test/scripts/test.js
index 96f9d347f7..ae87ca0083 100644
--- a/maintenance/projects/js-toolkit/qa/samples/packages/alias-test/scripts/test.js
+++ b/maintenance/projects/js-toolkit/qa/samples/packages/alias-test/scripts/test.js
@@ -36,7 +36,7 @@ function run(target) {
 	${proc.stderr}`
 		);
 	}
-	if (proc.status != 0) {
+	if (proc.status !== 0) {
 		abort(
 			`${target}:`,
 			`Exit with status code ${proc.status}
diff --git a/maintenance/projects/js-toolkit/resources/devtools/link-js-toolkit/link-js-toolkit.js b/maintenance/projects/js-toolkit/resources/devtools/link-js-toolkit/link-js-toolkit.js
index a8398c352e..2bf23f6256 100755
--- a/maintenance/projects/js-toolkit/resources/devtools/link-js-toolkit/link-js-toolkit.js
+++ b/maintenance/projects/js-toolkit/resources/devtools/link-js-toolkit/link-js-toolkit.js
@@ -9,10 +9,10 @@ const linkDependencies = require('./link-dependencies');
 const setupProject = require('./setup-project');
 const setupYarnWorkspace = require('./setup-yarn-workspace');
 
-if (process.argv[2] == '-w') {
+if (process.argv[2] === '-w') {
 	setupYarnWorkspace();
 }
-else if (process.argv[2] == '-p') {
+else if (process.argv[2] === '-p') {
 	setupProject();
 }
 else {
diff --git a/maintenance/projects/js-toolkit/resources/devtools/link-js-toolkit/util.js b/maintenance/projects/js-toolkit/resources/devtools/link-js-toolkit/util.js
index c1964efb02..0e5ad84240 100644
--- a/maintenance/projects/js-toolkit/resources/devtools/link-js-toolkit/util.js
+++ b/maintenance/projects/js-toolkit/resources/devtools/link-js-toolkit/util.js
@@ -13,7 +13,7 @@ const toolkitProjectNames = fs.readdirSync(
 );
 
 function isToolkitDep(pkgName) {
-	return toolkitProjectNames.indexOf(pkgName) != -1;
+	return toolkitProjectNames.indexOf(pkgName) !== -1;
 }
 
 function modifyPackageJson(pkgJsonPath, callback) {
@@ -36,7 +36,7 @@ function yarn(...args) {
 	if (proc.error) {
 		throw proc.error;
 	}
-	else if (proc.status != 0) {
+	else if (proc.status !== 0) {
 		throw new Error(
 			`'yarn ${args.join(' ')}' finished with status ${proc.status}`
 		);
diff --git a/maintenance/projects/js-toolkit/scripts/level-deps.js b/maintenance/projects/js-toolkit/scripts/level-deps.js
index 19e3525696..1a2c41b3fa 100755
--- a/maintenance/projects/js-toolkit/scripts/level-deps.js
+++ b/maintenance/projects/js-toolkit/scripts/level-deps.js
@@ -10,7 +10,7 @@ const getDepVersions = require('./util/get-dep-versions');
 
 const argv = process.argv;
 
-if (argv.length != 4) {
+if (argv.length !== 4) {
 	console.log('Usage: level-deps <package name> <desired version>');
 	process.exit(2);
 }
diff --git a/maintenance/projects/js-toolkit/scripts/qa/index.js b/maintenance/projects/js-toolkit/scripts/qa/index.js
index 307a935fda..0db496186a 100644
--- a/maintenance/projects/js-toolkit/scripts/qa/index.js
+++ b/maintenance/projects/js-toolkit/scripts/qa/index.js
@@ -154,7 +154,7 @@ Remember that we have used your Liferay installation at:
 function getTargets() {
 	let argv = process.argv.slice(2);
 
-	if (argv.length == 0) {
+	if (argv.length === 0) {
 		argv = ['reset', 'generate', 'install', 'deploy'];
 	}
 
diff --git a/maintenance/projects/js-toolkit/scripts/qa/util.js b/maintenance/projects/js-toolkit/scripts/qa/util.js
index ef7c787168..6bb6156b02 100644
--- a/maintenance/projects/js-toolkit/scripts/qa/util.js
+++ b/maintenance/projects/js-toolkit/scripts/qa/util.js
@@ -36,7 +36,7 @@ function spawn(cmd, args, options = {}) {
 		...options,
 	});
 
-	if (proc.error || proc.status != 0) {
+	if (proc.error || proc.status !== 0) {
 		process.exit(1);
 	}
 }
diff --git a/projects/amd-loader/src/loader/dependency-resolver.js b/projects/amd-loader/src/loader/dependency-resolver.js
index 577e7bb2c5..994b47adf7 100644
--- a/projects/amd-loader/src/loader/dependency-resolver.js
+++ b/projects/amd-loader/src/loader/dependency-resolver.js
@@ -27,7 +27,7 @@ export default class DependencyResolver {
 	 *     				(module name itself is being returned too)
 	 */
 	resolve(modules) {
-		if (modules === undefined || modules.length == 0) {
+		if (modules === undefined || modules.length === 0) {
 			throw new Error(`Argument 'modules' cannot be undefined or empty`);
 		}
 
diff --git a/projects/amd-loader/src/loader/loader.js b/projects/amd-loader/src/loader/loader.js
index fc1d92ebc8..301a654e64 100644
--- a/projects/amd-loader/src/loader/loader.js
+++ b/projects/amd-loader/src/loader/loader.js
@@ -75,7 +75,7 @@ export default class Loader {
 
 		// Acccount for call polymorphism
 
-		if (args.length == 2) {
+		if (args.length === 2) {
 			factory = dependencies;
 			dependencies = ['require', 'exports', 'module'];
 		}
@@ -142,12 +142,12 @@ export default class Loader {
 
 		// Account for call polymorphism
 
-		if (args.length == 1) {
+		if (args.length === 1) {
 			moduleNames = args[0];
 			success = undefined;
 			failure = undefined;
 		}
-		else if (args.length == 2) {
+		else if (args.length === 2) {
 			const lastArg = args[args.length - 1];
 
 			if (typeof lastArg === 'function') {
@@ -155,7 +155,7 @@ export default class Loader {
 				success = lastArg;
 				failure = undefined;
 			}
-			else if (lastArg == null) {
+			else if (lastArg === null || lastArg === undefined) {
 				moduleNames = args[0];
 				success = undefined;
 				failure = undefined;
@@ -170,7 +170,11 @@ export default class Loader {
 			const lastArg = args[args.length - 1];
 			let successGiven = false;
 
-			if (typeof lastArg === 'function' || lastArg == null) {
+			if (
+				typeof lastArg === 'function' ||
+				lastArg === null ||
+				lastArg === undefined
+			) {
 				successGiven = true;
 			}
 
@@ -185,7 +189,8 @@ export default class Loader {
 
 				if (
 					typeof penultimateArg === 'function' ||
-					penultimateArg == null
+					penultimateArg === null ||
+					penultimateArg === undefined
 				) {
 					failureGiven = true;
 				}
@@ -208,7 +213,7 @@ export default class Loader {
 		if (typeof moduleNames === 'string') {
 			moduleNames = [moduleNames];
 		}
-		else if (moduleNames.length == 1 && Array.isArray(moduleNames[0])) {
+		else if (moduleNames.length === 1 && Array.isArray(moduleNames[0])) {
 			moduleNames = [].concat(...moduleNames);
 		}
 
diff --git a/projects/amd-loader/src/loader/script-loader.js b/projects/amd-loader/src/loader/script-loader.js
index 921d3317ff..46553844f8 100644
--- a/projects/amd-loader/src/loader/script-loader.js
+++ b/projects/amd-loader/src/loader/script-loader.js
@@ -35,7 +35,7 @@ export default class ScriptLoader {
 	loadModules(moduleNames) {
 		const urlBuilder = this._urlBuilder;
 
-		if (moduleNames.length == 0) {
+		if (moduleNames.length === 0) {
 			return Promise.resolve();
 		}
 
diff --git a/projects/eslint-plugin/configs/general.js b/projects/eslint-plugin/configs/general.js
index e2e53743b1..ae8cc4a5ed 100644
--- a/projects/eslint-plugin/configs/general.js
+++ b/projects/eslint-plugin/configs/general.js
@@ -114,6 +114,7 @@ const config = {
 		'@liferay/use-state-naming-pattern': 'error',
 		'curly': 'error',
 		'default-case': 'error',
+		'eqeqeq': 'error',
 		'lines-around-comment': [
 			'error',
 			{
diff --git a/projects/js-themes-toolkit/packages/generator-liferay-theme/lib/LayoutCreator.js b/projects/js-themes-toolkit/packages/generator-liferay-theme/lib/LayoutCreator.js
index c474553c30..578f50e067 100644
--- a/projects/js-themes-toolkit/packages/generator-liferay-theme/lib/LayoutCreator.js
+++ b/projects/js-themes-toolkit/packages/generator-liferay-theme/lib/LayoutCreator.js
@@ -29,7 +29,7 @@ inquirer.prompt.prompts.list.prototype.render = function () {
 	var choices = _.reduce(
 		this.opt.choices.choices,
 		(result, item) => {
-			if (item.type != 'separator') {
+			if (item.type !== 'separator') {
 				result.push(item);
 			}
 
@@ -106,16 +106,16 @@ LayoutCreator.prototype = {
 	_afterPromptFinishRow(answers, callback) {
 		var finish = answers.finish;
 
-		if (finish == 'add') {
+		if (finish === 'add') {
 			this._promptRow(callback);
 		}
-		else if (finish == 'insert') {
+		else if (finish === 'insert') {
 			this._promptInsertRow(callback);
 		}
-		else if (answers.finish == 'finish') {
+		else if (answers.finish === 'finish') {
 			callback(null);
 		}
-		else if (finish == 'remove') {
+		else if (finish === 'remove') {
 			this._promptRemoveRow(callback);
 		}
 	},
diff --git a/projects/js-themes-toolkit/packages/generator-liferay-theme/lib/__tests__/LayoutCreator.test.js b/projects/js-themes-toolkit/packages/generator-liferay-theme/lib/__tests__/LayoutCreator.test.js
index d46e6f537a..7aaa645f1d 100644
--- a/projects/js-themes-toolkit/packages/generator-liferay-theme/lib/__tests__/LayoutCreator.test.js
+++ b/projects/js-themes-toolkit/packages/generator-liferay-theme/lib/__tests__/LayoutCreator.test.js
@@ -500,7 +500,7 @@ describe('LayoutCreator', () => {
 			_.forEach(choices, (choice, index) => {
 				index = index + 1;
 
-				if (index % 2 == 0) {
+				if (index % 2 === 0) {
 					assert.equal(choice.type, 'separator');
 					assert.equal(
 						stripAnsi(choice.line),
@@ -518,7 +518,7 @@ describe('LayoutCreator', () => {
 				}
 			});
 
-			assert(choices[choices.length - 1].type != 'separator');
+			assert(choices[choices.length - 1].type !== 'separator');
 
 			while (prototype.rows.length < 7) {
 				prototype.rows.push({
@@ -560,7 +560,7 @@ describe('LayoutCreator', () => {
 			_.forEach(choices, (choice, index) => {
 				index = index + 1;
 
-				if (index % 2 == 0) {
+				if (index % 2 === 0) {
 					assert.equal(choice.value, choiceValue);
 					assert.equal(
 						stripAnsi(choice.name),
@@ -578,7 +578,7 @@ describe('LayoutCreator', () => {
 				}
 			});
 
-			assert(choices[choices.length - 1].type == 'separator');
+			assert(choices[choices.length - 1].type === 'separator');
 
 			while (prototype.rows.length < 7) {
 				prototype.rows.push({
diff --git a/projects/js-themes-toolkit/packages/liferay-theme-tasks/lib/r2/liferay-r2/css-parse.js b/projects/js-themes-toolkit/packages/liferay-theme-tasks/lib/r2/liferay-r2/css-parse.js
index f9d5853df1..fe486ff053 100644
--- a/projects/js-themes-toolkit/packages/liferay-theme-tasks/lib/r2/liferay-r2/css-parse.js
+++ b/projects/js-themes-toolkit/packages/liferay-theme-tasks/lib/r2/liferay-r2/css-parse.js
@@ -126,7 +126,7 @@ module.exports = function (css, options) {
 		comments(rules);
 		while (
 			css.length &&
-			css.charAt(0) != '}' &&
+			css.charAt(0) !== '}' &&
 			(node = atrule() || rule())
 		) {
 			rules.push(node);
@@ -180,14 +180,14 @@ module.exports = function (css, options) {
 
 	function comment() {
 		var pos = position();
-		if ('/' != css.charAt(0) || '*' != css.charAt(1)) {
+		if ('/' !== css.charAt(0) || '*' !== css.charAt(1)) {
 			return;
 		}
 
 		var i = 2;
 		while (
-			null != css.charAt(i) &&
-			('*' != css.charAt(i) || '/' != css.charAt(i + 1))
+			null !== css.charAt(i) &&
+			('*' !== css.charAt(i) || '/' !== css.charAt(i + 1))
 		) {
 			++i;
 		}
@@ -599,7 +599,7 @@ module.exports = function (css, options) {
 	 */
 
 	function atrule() {
-		if (css[0] != '@') {
+		if (css[0] !== '@') {
 			return;
 		}
 
diff --git a/projects/js-themes-toolkit/packages/liferay-theme-tasks/lib/r2/liferay-r2/index.js b/projects/js-themes-toolkit/packages/liferay-theme-tasks/lib/r2/liferay-r2/index.js
index b719caa679..f7f190efd0 100644
--- a/projects/js-themes-toolkit/packages/liferay-theme-tasks/lib/r2/liferay-r2/index.js
+++ b/projects/js-themes-toolkit/packages/liferay-theme-tasks/lib/r2/liferay-r2/index.js
@@ -15,7 +15,7 @@ function quad(v, m) {
 
 	// 1px 2px 3px 4px => 1px 4px 3px 2px
 
-	if ((m = v.trim().split(/\s+(?=[^)]*(?:[(]|$))/)) && m.length == 4) {
+	if ((m = v.trim().split(/\s+(?=[^)]*(?:[(]|$))/)) && m.length === 4) {
 		return [m[0], m[3], m[2], m[1]].join(' ');
 	}
 
@@ -29,10 +29,10 @@ function quad_radius(v) {
 	// since border-radius: top-left top-right bottom-right bottom-left
 	// will be border-radius: top-right top-left bottom-left bottom-right
 
-	if (m && m.length == 4) {
+	if (m && m.length === 4) {
 		return [m[1], m[0], m[3], m[2]].join(' ');
 	}
-	else if (m && m.length == 3) {
+	else if (m && m.length === 3) {
 
 		// super odd how this works
 		// 5px 10px 20px => 10px 5px 10px 20px
@@ -67,10 +67,10 @@ function bgPosition(v) {
 		v = v.replace(/\bright\b/, 'left');
 	}
 	var m = v.trim().split(/\s+/);
-	if (m && m.length == 1 && v.match(/(\d+)([a-z]{2}|%)/)) {
+	if (m && m.length === 1 && v.match(/(\d+)([a-z]{2}|%)/)) {
 		v = 'right ' + v;
 	}
-	if (m && m.length == 2 && m[0].match(/\d+%/)) {
+	if (m && m.length === 2 && m[0].match(/\d+%/)) {
 
 		// 30% => 70% (100 - x)
 
diff --git a/projects/js-themes-toolkit/packages/liferay-theme-tasks/lib/test/util.js b/projects/js-themes-toolkit/packages/liferay-theme-tasks/lib/test/util.js
index 3353ba5142..a81138981b 100644
--- a/projects/js-themes-toolkit/packages/liferay-theme-tasks/lib/test/util.js
+++ b/projects/js-themes-toolkit/packages/liferay-theme-tasks/lib/test/util.js
@@ -27,7 +27,7 @@ expect.extend({
 					pass = false;
 					message = `Path '${path}' is not a folder`;
 				}
-				else if (fs.readdirSync(path).length == 0) {
+				else if (fs.readdirSync(path).length === 0) {
 					pass = false;
 					message = `Folder '${path}' is empty`;
 				}
@@ -51,7 +51,7 @@ expect.extend({
 					pass = false;
 					message = `Path '${path}' is not a folder`;
 				}
-				else if (fs.readdirSync(path).length != 0) {
+				else if (fs.readdirSync(path).length !== 0) {
 					pass = false;
 					message = `Folder '${path}' is not empty`;
 				}
@@ -364,7 +364,7 @@ function setupTempTheme(options) {
 function cleanTempPlugin(tempPlugin) {
 	const {savedCwd} = tempPlugin;
 
-	if (savedCwd != null) {
+	if (savedCwd !== null && savedCwd !== undefined) {
 		process.chdir(savedCwd);
 	}
 }
@@ -377,7 +377,7 @@ function cleanTempPlugin(tempPlugin) {
 function cleanTempTheme(tempTheme) {
 	const {savedCwd} = tempTheme;
 
-	if (savedCwd != null) {
+	if (savedCwd !== null && savedCwd !== undefined) {
 		process.chdir(savedCwd);
 	}
 }
diff --git a/projects/js-themes-toolkit/packages/liferay-theme-tasks/plugin/lib/register_hooks.js b/projects/js-themes-toolkit/packages/liferay-theme-tasks/plugin/lib/register_hooks.js
index 0909e6b374..61734886e4 100644
--- a/projects/js-themes-toolkit/packages/liferay-theme-tasks/plugin/lib/register_hooks.js
+++ b/projects/js-themes-toolkit/packages/liferay-theme-tasks/plugin/lib/register_hooks.js
@@ -78,7 +78,7 @@ RegisterHooks.prototype = {
 				var when = data[0];
 				var taskName = data[1];
 
-				if (when != 'after' && when != 'before') {
+				if (when !== 'after' && when !== 'before') {
 					return taskHookMap;
 				}
 
diff --git a/projects/js-themes-toolkit/packages/liferay-theme-tasks/plugin/tasks/version.js b/projects/js-themes-toolkit/packages/liferay-theme-tasks/plugin/tasks/version.js
index df5337a34e..dda8065713 100644
--- a/projects/js-themes-toolkit/packages/liferay-theme-tasks/plugin/tasks/version.js
+++ b/projects/js-themes-toolkit/packages/liferay-theme-tasks/plugin/tasks/version.js
@@ -39,7 +39,7 @@ module.exports = function () {
 
 				var moduleVersion = result.match(REGEX_MODULE_VERSION);
 
-				if (moduleVersion && moduleVersion[1] != npmPackageVersion) {
+				if (moduleVersion && moduleVersion[1] !== npmPackageVersion) {
 					result = result.replace(
 						REGEX_MODULE_VERSION,
 						(_match, _g1) => {
diff --git a/projects/js-themes-toolkit/packages/liferay-theme-tasks/theme/prompts/__tests__/prompt_util.test.js b/projects/js-themes-toolkit/packages/liferay-theme-tasks/theme/prompts/__tests__/prompt_util.test.js
index cf16f20fad..2c9deb079f 100644
--- a/projects/js-themes-toolkit/packages/liferay-theme-tasks/theme/prompts/__tests__/prompt_util.test.js
+++ b/projects/js-themes-toolkit/packages/liferay-theme-tasks/theme/prompts/__tests__/prompt_util.test.js
@@ -58,7 +58,7 @@ it('formatThemeletSelection should format themelet selection retrieved from getM
 it('getListType should get listType based on environment', () => {
 	const listType = promptUtil.getListType();
 
-	expect(listType == 'list' || listType == 'rawlist').toBe(true);
+	expect(listType === 'list' || listType === 'rawlist').toBe(true);
 });
 
 it('getModuleChoices should get module choices that are appropriate for extend type', () => {
@@ -80,7 +80,7 @@ it('getModuleChoices should get module choices that are appropriate for extend t
 		const number = index + 1;
 		const name = 'themelet-' + number;
 
-		if (number == 1) {
+		if (number === 1) {
 			expect(item.name).toBe(name + ' (selected)');
 		}
 
@@ -108,7 +108,7 @@ it('getModuleChoices should get module choices that are appropriate for extend t
 		const number = index + 1;
 		const name = 'themelet-' + number;
 
-		if (number == 1) {
+		if (number === 1) {
 			expect(item.checked).toBe(true);
 		}
 		else {
diff --git a/projects/js-themes-toolkit/scripts/qa.js b/projects/js-themes-toolkit/scripts/qa.js
index 788f6f82b0..8872ac1ca8 100644
--- a/projects/js-themes-toolkit/scripts/qa.js
+++ b/projects/js-themes-toolkit/scripts/qa.js
@@ -176,7 +176,7 @@ function spawn(cmd, args, options = {}) {
 		...options,
 	});
 
-	if (proc.error || proc.status != 0) {
+	if (proc.error || proc.status !== 0) {
 		process.exit(1);
 	}
 }
diff --git a/projects/js-toolkit/packages/dev-server/src/server.ts b/projects/js-toolkit/packages/dev-server/src/server.ts
index 841d51b9c9..6d71f887d9 100644
--- a/projects/js-toolkit/packages/dev-server/src/server.ts
+++ b/projects/js-toolkit/packages/dev-server/src/server.ts
@@ -194,7 +194,7 @@ export default async function (): Promise<void> {
 
 		if (
 			request.headers.accept &&
-			request.headers.accept == 'text/event-stream'
+			request.headers.accept === 'text/event-stream'
 		) {
 			if (url === '/events') {
 				log(chalk.cyan('Connecting Live Session...'));
diff --git a/projects/js-toolkit/packages/js-toolkit-core/src/format.ts b/projects/js-toolkit/packages/js-toolkit-core/src/format.ts
index b4120df783..ffee3fdffa 100644
--- a/projects/js-toolkit/packages/js-toolkit-core/src/format.ts
+++ b/projects/js-toolkit/packages/js-toolkit-core/src/format.ts
@@ -19,8 +19,8 @@ const lrFormatOpts = (process.env['LR_FORMAT_OPTS'] || '').split(',');
 
 /** Unrolled formatting options */
 const options = {
-	noColors: lrFormatOpts.indexOf('no-colors') != -1,
-	noDecorations: lrFormatOpts.indexOf('no-decorations') != -1,
+	noColors: lrFormatOpts.indexOf('no-colors') !== -1,
+	noDecorations: lrFormatOpts.indexOf('no-decorations') !== -1,
 };
 
 const verbatim = (...args): string => args.join(' ');
diff --git a/projects/js-toolkit/packages/js-toolkit-core/src/node/namespace.ts b/projects/js-toolkit/packages/js-toolkit-core/src/node/namespace.ts
index 70e9ddf9b4..9b489affe1 100644
--- a/projects/js-toolkit/packages/js-toolkit-core/src/node/namespace.ts
+++ b/projects/js-toolkit/packages/js-toolkit-core/src/node/namespace.ts
@@ -11,7 +11,9 @@ import * as mod from './modules';
  * @return true if the module is namespaced
  */
 export function isNamespaced(moduleName: string): boolean {
-	return getNamespace(moduleName) != null;
+	const namespace = getNamespace(moduleName);
+
+	return namespace !== null && namespace !== undefined;
 }
 
 /**
@@ -32,7 +34,7 @@ export function addNamespace(
 	const moduleNamespace = getNamespace(moduleName);
 	const namespace = makeNamespace(pkgJson);
 
-	if (moduleNamespace != null) {
+	if (moduleNamespace !== null) {
 		if (moduleNamespace !== namespace) {
 			if (!allowOverride) {
 				throw new Error(
@@ -71,7 +73,7 @@ export function addNamespace(
 export function removeNamespace(moduleName: string): string {
 	const namespace = getNamespace(moduleName);
 
-	if (namespace != null) {
+	if (namespace !== null && namespace !== undefined) {
 		if (moduleName.startsWith('@')) {
 			return moduleName.replace(`@${namespace}`, '@');
 		}
diff --git a/projects/js-toolkit/packages/js-toolkit-core/src/transform/js/index.ts b/projects/js-toolkit/packages/js-toolkit-core/src/transform/js/index.ts
index 14fb8f3af5..f39b14545f 100644
--- a/projects/js-toolkit/packages/js-toolkit-core/src/transform/js/index.ts
+++ b/projects/js-toolkit/packages/js-toolkit-core/src/transform/js/index.ts
@@ -140,7 +140,10 @@ async function mergeMaps(
 			line: mapping.originalLine,
 		});
 
-		if (origPosInOldMap.source == null) {
+		if (
+			origPosInOldMap.source === null ||
+			origPosInOldMap.source === undefined
+		) {
 			return;
 		}
 
diff --git a/projects/js-toolkit/packages/js-toolkit-core/src/transform/js/operation/wrapModule.ts b/projects/js-toolkit/packages/js-toolkit-core/src/transform/js/operation/wrapModule.ts
index 0a4a39f4a5..d3bde3e1f0 100644
--- a/projects/js-toolkit/packages/js-toolkit-core/src/transform/js/operation/wrapModule.ts
+++ b/projects/js-toolkit/packages/js-toolkit-core/src/transform/js/operation/wrapModule.ts
@@ -163,7 +163,7 @@ function getDefineDependencies(
 
 			const {arguments: params} = node;
 
-			if (params.length != 1) {
+			if (params.length !== 1) {
 				return;
 			}
 
diff --git a/projects/js-toolkit/packages/npm-bundler/src/bundle/ExplainedError.ts b/projects/js-toolkit/packages/npm-bundler/src/bundle/ExplainedError.ts
index 6d516372b3..b1fbdaeb3c 100644
--- a/projects/js-toolkit/packages/npm-bundler/src/bundle/ExplainedError.ts
+++ b/projects/js-toolkit/packages/npm-bundler/src/bundle/ExplainedError.ts
@@ -46,7 +46,7 @@ ${lines
 	.map((line, i) => {
 		i += beginLine;
 
-		const errorMarker = i == aroundLine ? '>' : ' ';
+		const errorMarker = i === aroundLine ? '>' : ' ';
 		const lineNumber = i.toString().padStart(padMinChars);
 
 		return `${errorMarker} ${lineNumber}: ${line}`;
diff --git a/projects/js-toolkit/packages/npm-bundler/src/transform/js/operation/transformImports.ts b/projects/js-toolkit/packages/npm-bundler/src/transform/js/operation/transformImports.ts
index d50296807b..1b9bba80fe 100644
--- a/projects/js-toolkit/packages/npm-bundler/src/transform/js/operation/transformImports.ts
+++ b/projects/js-toolkit/packages/npm-bundler/src/transform/js/operation/transformImports.ts
@@ -70,7 +70,7 @@ function transformCallExpression(
 
 	const {arguments: params} = node;
 
-	if (params.length != 1) {
+	if (params.length !== 1) {
 		return false;
 	}
 
diff --git a/projects/js-toolkit/packages/npm-bundler/src/webpack/loader/imports-loader.ts b/projects/js-toolkit/packages/npm-bundler/src/webpack/loader/imports-loader.ts
index fd3aa65175..20bcbdeaf2 100644
--- a/projects/js-toolkit/packages/npm-bundler/src/webpack/loader/imports-loader.ts
+++ b/projects/js-toolkit/packages/npm-bundler/src/webpack/loader/imports-loader.ts
@@ -62,7 +62,7 @@ async function asyncTransform(
 	let importsFound = false;
 
 	for (const pkgName of Object.keys(imports)) {
-		if (content.indexOf(pkgName) != -1) {
+		if (content.indexOf(pkgName) !== -1) {
 			importsFound = true;
 
 			break;
diff --git a/projects/js-toolkit/packages/portal-adapt-base/src/util/removeWebpackHash.ts b/projects/js-toolkit/packages/portal-adapt-base/src/util/removeWebpackHash.ts
index d9921e390f..8860471eea 100644
--- a/projects/js-toolkit/packages/portal-adapt-base/src/util/removeWebpackHash.ts
+++ b/projects/js-toolkit/packages/portal-adapt-base/src/util/removeWebpackHash.ts
@@ -20,7 +20,7 @@ export default function removeWebpackHash(filePath: string): string {
 		}
 	}
 
-	if (hashIndex == -1) {
+	if (hashIndex === -1) {
 		return filePath;
 	}
 
diff --git a/projects/js-toolkit/packages/portal-adapt-base/src/util/runNodeModulesBin.ts b/projects/js-toolkit/packages/portal-adapt-base/src/util/runNodeModulesBin.ts
index 168a1e1564..912db4a6e2 100644
--- a/projects/js-toolkit/packages/portal-adapt-base/src/util/runNodeModulesBin.ts
+++ b/projects/js-toolkit/packages/portal-adapt-base/src/util/runNodeModulesBin.ts
@@ -23,7 +23,7 @@ export default function runNodeModulesBin(
 	if (proc.error) {
 		throw proc.error;
 	}
-	else if (proc.status != 0) {
+	else if (proc.status !== 0) {
 		throw new Error(
 			`Node modules binary '${script}' finished with status ${proc.status}`
 		);
diff --git a/projects/js-toolkit/packages/portal-adapt-base/src/util/runPkgJsonScript.ts b/projects/js-toolkit/packages/portal-adapt-base/src/util/runPkgJsonScript.ts
index 7eba898447..4b421db13e 100644
--- a/projects/js-toolkit/packages/portal-adapt-base/src/util/runPkgJsonScript.ts
+++ b/projects/js-toolkit/packages/portal-adapt-base/src/util/runPkgJsonScript.ts
@@ -26,7 +26,7 @@ export default function runPkgJsonScript(
 	if (proc.error) {
 		throw proc.error;
 	}
-	else if (proc.status != 0) {
+	else if (proc.status !== 0) {
 		throw new Error(
 			`Package script '${script}' finished with status ${proc.status}`
 		);
diff --git a/projects/js-toolkit/resources/devtools/link-js-toolkit/util.js b/projects/js-toolkit/resources/devtools/link-js-toolkit/util.js
index 34e1a5a9f6..72d7b75a1b 100644
--- a/projects/js-toolkit/resources/devtools/link-js-toolkit/util.js
+++ b/projects/js-toolkit/resources/devtools/link-js-toolkit/util.js
@@ -15,7 +15,7 @@ const toolkitProjectNames = fs
 	.map((dir) => `@liferay/${dir}`);
 
 function isToolkitDep(pkgName) {
-	return toolkitProjectNames.indexOf(pkgName) != -1;
+	return toolkitProjectNames.indexOf(pkgName) !== -1;
 }
 
 function modifyPackageJson(pkgJsonPath, callback) {
diff --git a/projects/js-toolkit/scripts/watch.js b/projects/js-toolkit/scripts/watch.js
index 98a84f5c47..ff1fa73771 100644
--- a/projects/js-toolkit/scripts/watch.js
+++ b/projects/js-toolkit/scripts/watch.js
@@ -85,7 +85,12 @@ watch.watchTree(
 	'.',
 	{filter: filterStaticFiles, ignoreDotFiles: false, interval: 1},
 	(filename, curr, prev) => {
-		if (typeof filename == 'object' && prev === null && curr === null) {
+		if (
+			filename !== null &&
+			typeof filename === 'object' &&
+			(prev === null || prev === undefined) &&
+			(curr === null || curr === undefined)
+		) {
 			console.log(
 				'Watching',
 				Object.keys(filename).length,
diff --git a/projects/npm-tools/packages/npm-scripts/src/jsp/Lexer.js b/projects/npm-tools/packages/npm-scripts/src/jsp/Lexer.js
index d78a024c94..ddd1c10a17 100644
--- a/projects/npm-tools/packages/npm-scripts/src/jsp/Lexer.js
+++ b/projects/npm-tools/packages/npm-scripts/src/jsp/Lexer.js
@@ -663,7 +663,7 @@ class Lexer {
 
 				// Return result of previous `peek()`.
 
-				if (peeked != undefined) {
+				if (peeked !== undefined && peeked !== null) {
 					result = peeked;
 				}
 				else {