Linting and highlighting config

Author: kav2k

.eslintrc.json

@@ -1,2 +1,2 @@
-build/*
-
+node_modules
+build

.gitignore

@@ -0,0 +1,70 @@
+import globals from "globals";
+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"), {
+    languageOptions: {
+        globals: {
+            ...globals.browser,
+            ...globals.webextensions,
+            ...globals.jquery,
+        },
+    },
+
+    files: ["source/js/*.js"],
+
+    rules: {
+        "no-console": "off",
+
+        indent: ["warn", 2, {
+            SwitchCase: 1,
+        }],
+
+        "no-trailing-spaces": "warn",
+        "eol-last": "warn",
+        "no-multiple-empty-lines": "warn",
+
+        "space-unary-ops": ["warn", {
+            words: true,
+            nonwords: false,
+        }],
+
+        "space-infix-ops": "warn",
+        "keyword-spacing": "warn",
+        "space-before-blocks": ["warn", "always"],
+        "operator-linebreak": "warn",
+        "space-before-function-paren": ["warn", "never"],
+        "space-in-parens": ["warn", "never"],
+        "array-bracket-spacing": ["warn", "never"],
+        "no-spaced-func": "warn",
+
+        "no-unused-vars": ["error", { "caughtErrors": "none" }],
+
+        "key-spacing": ["warn", {
+            beforeColon: false,
+            afterColon: true,
+        }],
+
+        "quote-props": ["warn", "as-needed"],
+
+        "brace-style": ["warn", "1tbs", {
+            allowSingleLine: true,
+        }],
+
+        curly: ["warn", "multi-line"],
+        "no-with": "warn",
+        "dot-notation": "warn",
+        semi: ["warn", "always"],
+        "no-var": "warn",
+    },
+}];

eslint.config.mjs

@@ -0,0 +1,9 @@
+{
+  "compilerOptions": {
+    "target": "ES2023"
+  },
+  "typeAcquisition": {
+    "enable": true,
+    "include": ["firefox-webext-browser", "chrome", "jquery"]
+  }
+}