Update from node 16 to node 20 for Github actions and builds

.github/workflows/deploy.yaml

@@ -9,12 +9,12 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
-      - uses: actions/setup-node@v3
+      - uses: actions/setup-node@v4
         with:
-          node-version: 18
+          node-version: 20
           cache: 'npm'
 
       - name: Install dependencies

.github/workflows/jest.yaml

@@ -6,12 +6,12 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
-      - uses: actions/setup-node@v3
+      - uses: actions/setup-node@v4
         with:
-          node-version: 18
+          node-version: 20
           cache: 'npm'
 
       - name: Install dependencies

.github/workflows/publish.yaml

@@ -23,9 +23,9 @@ jobs:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0
-      - uses: actions/setup-node@v3
+      - uses: actions/setup-node@v4
         with:
-          node-version: 18
+          node-version: 20
           cache: 'npm'
 
       - name: Install dependencies

eslint.config.mjs

@@ -0,0 +1,50 @@
+import prettier from "eslint-plugin-prettier";
+import globals from "globals";
+import babelParser from "@babel/eslint-parser";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+import js from "@eslint/js";
+import { FlatCompat } from "@eslint/eslintrc";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+const compat = new FlatCompat({
+    baseDirectory: __dirname,
+    recommendedConfig: js.configs.recommended,
+    allConfig: js.configs.all
+});
+
+export default [...compat.extends("eslint:recommended", "prettier"), {
+    plugins: {
+        prettier,
+    },
+
+    languageOptions: {
+        globals: {
+            ...globals.browser,
+            ...globals.node,
+            ...globals.jest,
+            jQuery: true,
+            $: true,
+        },
+
+        parser: babelParser,
+        ecmaVersion: 2018,
+        sourceType: "module",
+    },
+
+    rules: {
+        "max-len": 0,
+        "linebreak-style": ["error", "unix"],
+        quotes: ["error", "single"],
+        semi: ["error", "never"],
+        "no-unused-vars": 1,
+        "no-prototype-builtins": 0,
+        "arrow-parens": ["warn", "as-needed"],
+
+        "prefer-const": [1, {
+            destructuring: "any",
+            ignoreReadBeforeAssign: false,
+        }],
+    },
+}];