eslint.config.mjs

import { fixupConfigRules } from "@eslint/compat";
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 [
  ...fixupConfigRules(
    compat.extends("eslint:recommended", "plugin:import/recommended"),
  ),
  {
    languageOptions: {
      globals: {
        ...globals.browser,
        ...globals.jest,
      },

      ecmaVersion: 6,
      sourceType: "script",
    },

    rules: {
      "block-scoped-var": 2,
      "consistent-return": 2,
      "constructor-super": 2,
      "default-param-last": 2,
      "for-direction": 2,
      "getter-return": 2,
      "no-alert": 2,
      "no-async-promise-executor": 2,
      "no-case-declarations": 2,
      "no-class-assign": 2,
      "no-compare-neg-zero": 2,
      "no-cond-assign": 2,
      "no-console": 2,
      "no-const-assign": 2,
      "no-constant-condition": 2,
      "no-control-regex": 2,
      "no-debugger": 2,
      "no-delete-var": 2,
      "no-dupe-args": 2,
      "no-dupe-class-members": 2,
      "no-dupe-else-if": 2,
      "no-dupe-keys": 2,
      "no-duplicate-case": 2,
      "no-duplicate-imports": 2,
      "no-empty-character-class": 2,
      "no-empty-function": 2,
      "no-empty-pattern": 2,
      "no-empty": 2,
      "no-eq-null": 2,
      "no-eval": 2,
      "no-ex-assign": 2,
      "no-extend-native": 2,
      "no-extra-boolean-cast": 2,
      "no-fallthrough": 2,
      "no-func-assign": 2,
      "no-global-assign": 2,
      "no-implicit-globals": 2,
      "no-implied-eval": 2,
      "no-import-assign": 2,
      "no-inner-declarations": 2,
      "no-invalid-regexp": 2,
      "no-irregular-whitespace": 2,
      "no-loop-func": 2,
      "no-loss-of-precision": 2,
      "no-misleading-character-class": 2,
      "no-new-func": 2,
      "no-new-symbol": 2,
      "no-new-wrappers": 2,
      "no-new": 2,
      "no-obj-calls": 2,
      "no-octal": 2,
      "no-param-reassign": 2,
      "no-prototype-builtins": 2,
      "no-redeclare": 2,
      "no-regex-spaces": 2,
      "no-self-assign": 2,
      "no-self-compare": 2,
      "no-setter-return": 2,
      "no-shadow-restricted-names": 2,
      "no-sparse-arrays": 2,
      "no-template-curly-in-string": 2,
      "no-this-before-super": 2,
      "no-undef-init": 2,
      "no-undef": 2,
      "no-unreachable-loop": 2,
      "no-unreachable": 2,
      "no-unsafe-finally": 2,
      "no-unsafe-negation": 2,
      "no-unused-labels": 2,
      "no-unused-vars": 2,
      "no-useless-catch": 2,
      "no-useless-concat": 2,
      "no-useless-escape": 2,
      "no-useless-return": 2,
      "no-var": "error",
      "no-warning-comments": 1,
      "no-with": 2,
      "prefer-const": 1,
      "prefer-destructuring": 1,
      "prefer-template": 1,
      "require-yield": 2,
      "use-isnan": 2,
      "valid-typeof": 2,
      "vars-on-top": 2,
      complexity: ["warn", 10],
      curly: 2,
      eqeqeq: 2,
      yoda: 2,
    },
  },
];