eslint.config.mjs

import { fixupConfigRules, fixupPluginRules } from '@eslint/compat';
import react from 'eslint-plugin-react';
import typescriptEslint from '@typescript-eslint/eslint-plugin';
import globals from 'globals';
import tsParser from '@typescript-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 [
  {
    ignores: ['**/node_modules', '**/.eslintrc.js', '**/webpack*.js']
  },
  ...fixupConfigRules(
    compat.extends(
      'eslint:recommended',
      'plugin:react/recommended',
      'plugin:react-hooks/recommended',
      'plugin:@typescript-eslint/recommended'
    )
  ),
  {
    plugins: {
      react: fixupPluginRules(react),
      '@typescript-eslint': fixupPluginRules(typescriptEslint)
    },

    languageOptions: {
      globals: {
        ...globals.browser
      },

      parser: tsParser,
      ecmaVersion: 'latest',
      sourceType: 'module',

      parserOptions: {
        ecmaFeatures: {
          jsx: true
        },

        project: './tsconfig.json'
      }
    },

    settings: {
      react: {
        version: 'detect'
      }
    },

    rules: {
      eqeqeq: 'error',
      'no-var': 'error',
      'no-with': 'error',
      'prefer-const': 'warn',
      'use-isnan': 'error',
      '@typescript-eslint/no-unused-vars': ['error', { argsIgnorePattern: '^_', varsIgnorePattern: '^_' }],
      '@typescript-eslint/semi': 'off',
      '@typescript-eslint/member-delimiter-style': 'off',
      '@typescript-eslint/space-before-function-paren': 'off',
      '@typescript-eslint/explicit-function-return-type': 'off',
      '@typescript-eslint/no-var-requires': 'off',
      '@typescript-eslint/no-non-null-assertion': 'off',
      'react/jsx-uses-react': 'off',
      'react/react-in-jsx-scope': 'off',
      semi: 'off'
    }
  }
];