Simplify by using native JavaScript instead of jQuery

Change-Id: I2ca5fbb21ac473f482579a944e5ab68c9374191c

resources/js/ext.uls.compactlinks.js

@@ -210,14 +210,12 @@
 	 * @param {jQuery} $trigger Element to use as trigger.
 	 */
 	CompactInterlanguageList.prototype.createSelector = function ( $trigger ) {
-		var languages,
+		var languages = Object.keys( this.interlanguageList ),
 			self = this,
 			ulsLanguageList = {};
 
-		languages = $.map( this.interlanguageList, function ( language, languageCode ) {
-			ulsLanguageList[ languageCode ] = language.autonym;
-
-			return languageCode;
+		languages.forEach( function ( languageCode ) {
+			ulsLanguageList[ languageCode ] = this.interlanguageList[ languageCode ].autonym;
 		} );
 
 		// Attach ULS to the trigger
@@ -329,9 +327,7 @@
 		var language, languages, compactLanguages, i,
 			compactedList = {};
 
-		languages = $.map( this.interlanguageList, function ( item, languageCode ) {
-			return languageCode;
-		} );
+		languages = Object.keys( this.interlanguageList );
 
 		compactLanguages = this.compact( languages );
 

resources/js/ext.uls.displaysettings.js

@@ -456,7 +456,7 @@
 
 			// Get the saved font using the fontSelector defined in mw.webfonts.setup
 			savedFont = this.$webfonts.getFont( language );
-			$.each( fonts, function ( key, font ) {
+			fonts.forEach( function ( font ) {
 				var $fontOption;
 
 				if ( font !== 'system' ) {

resources/js/ext.uls.languagesettings.js

@@ -105,18 +105,14 @@
 
 			// Get the name of all registered modules and list them in left side menu.
 			// Sort the modules based on id
-			modules = $.map( $.fn.languagesettings.modules, function ( element, index ) {
-				return index;
-			} ).sort();
-			$.each( modules, function ( index, moduleName ) {
-				if ( $.fn.languagesettings.modules.hasOwnProperty( moduleName ) ) {
-					if ( !defaultModule ) {
-						defaultModule = moduleName;
-					}
-
-					// Call render function on the current setting module.
-					languageSettings.initModule( moduleName, defaultModule === moduleName );
+			modules = Object.keys( $.fn.languagesettings.modules ).sort();
+			modules.forEach( function ( moduleName ) {
+				if ( !defaultModule ) {
+					defaultModule = moduleName;
 				}
+
+				// Call render function on the current setting module.
+				languageSettings.initModule( moduleName, defaultModule === moduleName );
 			} );
 		},