eslint.config.mjs

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"), {
    languageOptions: {
        globals: {
            ...globals.browser,
            ...globals.node,
            ...globals.jquery,
            ...globals.mocha
        },

        parser: babelParser,
        ecmaVersion: 5,
        sourceType: "script",

        parserOptions: {
            requireConfigFile: false,
        },
    },

    rules: {
        indent: ["error", 4, {
            SwitchCase: 1,
        }],

        "linebreak-style": ["error", "unix"],
        quotes: ["error", "single"],
        semi: ["error", "always"],
    },
}];