Update Eslint config, add new rule and handle issue (#3068)

.eslintrc.json

@@ -3,7 +3,7 @@
 	"plugins": ["prettier", "jsdoc", "jest"],
 	"env": {
 		"browser": true,
-		"es6": true,
+		"es2022": true,
 		"jest/globals": true,
 		"node": true
 	},
@@ -16,7 +16,7 @@
 	},
 	"parserOptions": {
 		"sourceType": "module",
-		"ecmaVersion": 2020,
+		"ecmaVersion": 2022,
 		"ecmaFeatures": {
 			"globalReturn": true
 		}
@@ -24,6 +24,7 @@
 	"rules": {
 		"eqeqeq": "error",
 		"no-prototype-builtins": "off",
+		"no-throw-literal": "error",
 		"no-unused-vars": "off",
 		"no-useless-return": "error",
 		"prefer-template": "error"

CHANGELOG.md

@@ -37,6 +37,7 @@ _This release is scheduled to be released on 2023-04-01._
 - Update dates in Calendar widgets every minute
 - Cleanup jest coverage for patches
 - Update `stylelint` dependencies, switch to `stylelint-config-standard` and handle `stylelint` issues
+- Update Eslint config, add new rule and handle issue
 - Convert lots of callbacks to async/await
 - Fixed Open-Meteo wind speed units
 

tests/unit/classes/translator_spec.js

@@ -188,7 +188,7 @@ describe("Translator", () => {
 				const file = "translation_test.json";
 
 				XMLHttpRequest.prototype.send = () => {
-					throw "Shouldn't load files";
+					throw new Error("Shouldn't load files");
 				};
 
 				Translator.translationsFallback[mmm.name] = {