Everything to ES2020

.eslintrc.js

@@ -3,7 +3,7 @@ module.exports = {
 //	extends: ['eslint:recommended', 'plugin:prettier/recommended'],
 	extends: ['eslint:recommended'],
 	parserOptions: {
-		ecmaVersion: 6,
+		ecmaVersion: 11,
 		sourceType: 'module'
 	},
 	env: {

dev/Common/Translator.js

@@ -62,7 +62,7 @@ export const
 	 * @returns {string}
 	 */
 	i18n = (key, valueList, defaulValue) => {
-		let result = null == defaulValue ? key : defaulValue;
+		let result = defaulValue ?? key;
 		let path = key.split('/');
 		if (I18N_DATA[path[0]] && path[1]) {
 			result = I18N_DATA[path[0]][path[1]] || result;

dev/Component/Checkbox.js

@@ -6,7 +6,7 @@ export class CheckboxComponent {
 			: ko.observable(!!params.value);
 
 		this.enable = ko.isObservable(params.enable) ? params.enable
-			: ko.observable(undefined === params.enable || !!params.enable);
+			: ko.observable(params.enable ?? 1);
 
 		this.label = params.label;
 	}

dev/DAV/JCard.js

@@ -124,7 +124,7 @@ export class JCard {
 		// VCardProperty argument
 		else if (arg instanceof VCardProperty) {
 			let propArray = this.props.get(arg.getField());
-			if (!(propArray === null || propArray === void 0 ? void 0 : propArray.includes(arg)))
+			if (!propArray?.includes(arg))
 				throw Error("Attempted to remove VCardProperty VCard does not have: ".concat(arg));
 			propArray.splice(propArray.indexOf(arg), 1);
 			if (propArray.length === 0)

dev/Remote/AbstractFetch.js

@@ -131,7 +131,7 @@ export class AbstractFetchRemote
 
 		fetchJSON(sAction, getURL(sGetAdd),
 			sGetAdd ? null : (params || {}),
-			undefined === iTimeout ? 30000 : pInt(iTimeout),
+			pInt(iTimeout ?? 30000),
 			async data => {
 				let iError = 0;
 				if (data) {

dev/Screen/AbstractSettings.js

@@ -117,7 +117,7 @@ export class AbstractSettingsScreen extends AbstractScreen {
 			rules = {
 				subname: /^(.*)$/,
 				normalize_: (rquest, vals) => {
-					vals.subname = null == vals.subname ? defaultRoute : pString(vals.subname);
+					vals.subname = pString(vals.subname ?? defaultRoute);
 					return [vals.subname];
 				}
 			};

dev/Storage/Client.js

@@ -23,7 +23,7 @@ try {
 	data = data ? decodeURIComponent(data[2]) : null;
 	data = data ? JSON.parse(data) : {};
 	win[sName] = {
-		getItem: key => data[key] == null ? null : data[key],
+		getItem: key => data[key] ?? null,
 		setItem: (key, value) => {
 			data[key] = ''+value; // forces the value to a string
 			document.cookie = sName+'='+encodeURIComponent(JSON.stringify(data))

dev/dragdropgecko.js

@@ -75,8 +75,8 @@
 				// create drag image from custom element or drag source
 				img = src.cloneNode(true);
 				copyStyle(src, img);
-				img._x = xOffset == null ? src.clientWidth / 2 : xOffset;
-				img._y = yOffset == null ? src.clientHeight / 2 : yOffset;
+				img._x = xOffset ?? src.clientWidth / 2;
+				img._y = yOffset ?? src.clientHeight / 2;
 			}
 		},
 

rollup.config.js

@@ -46,7 +46,7 @@ let terserConfig = {
 	},
 	keep_classnames: true, // Required for AbstractModel and AbstractCollectionModel
 	compress:{
-		ecma: 6,
+		ecma: 2020,
 		drop_console: true
 /*
 		,hoist_props: false

vendors/knockout/build/output/knockout-latest.debug.js

@@ -530,7 +530,7 @@ ko.observable = initialValue => {
     observable[observableLatestValue] = initialValue;
 
     Object.defineProperty(observable, length, {
-        get: () => null == observable[observableLatestValue] ? undefined : observable[observableLatestValue][length]
+        get: () => observable[observableLatestValue]?.[length]
     });
 
     // Inherit from 'subscribable'
@@ -1294,7 +1294,7 @@ ko.selectExtensions = {
                 break;
             case 'SELECT':
                 // A blank string or null value will select the caption
-                var selection = -1, noValue = ("" === value || null == value),
+                var selection = -1, noValue = ("" === (value ?? "")),
                     i = element.options.length, optionValue;
                 while (i--) {
                     optionValue = ko.selectExtensions.readValue(element.options[i]);
@@ -1309,7 +1309,7 @@ ko.selectExtensions = {
                 }
                 break;
             default:
-                element.value = (value == null) ? "" : value;
+                element.value = value ?? "";
                 break;
         }
     }
@@ -2660,7 +2660,6 @@ ko.bindingHandlers['options'] = {
             previousScrollTop = (!selectWasPreviouslyEmpty && multiple) ? element.scrollTop : null,
             unwrappedArray = ko.utils.unwrapObservable(valueAccessor()),
             arrayToDomNodeChildrenOptions = {},
-            captionValue,
             filteredArray,
             previousSelectedValues = [],
 
@@ -2701,7 +2700,7 @@ ko.bindingHandlers['options'] = {
                 unwrappedArray = [unwrappedArray];
 
             // Filter out any entries marked as destroyed
-            filteredArray = unwrappedArray.filter(item => item || item == null);
+            filteredArray = unwrappedArray.filter(item => item ?? 1);
         } else {
             // If a falsy value is provided (e.g. null), we'll simply empty the select element
         }
@@ -2847,11 +2846,7 @@ ko.bindingHandlers['textInput'] = {
         };
 
         var updateView = () => {
-            var modelValue = ko.utils.unwrapObservable(valueAccessor());
-
-            if (modelValue == null) {
-                modelValue = '';
-            }
+            var modelValue = ko.utils.unwrapObservable(valueAccessor()) ?? '';
 
             if (elementValueBeforeEvent !== undefined && modelValue === elementValueBeforeEvent) {
                 setTimeout(updateView, 4);