.eslintrc.js

module.exports = {
  root: true,
  env: {
    node: true,
    browser: true,
    es2021: true,
  },
  extends: ['eslint:recommended', 'plugin:react/recommended', 'plugin:prettier/recommended'],
  settings: {
    react: { version: 'detect' },
    'import/resolver': {
      node: {
        extensions: ['.js', '.jsx', '.ts', '.tsx'],
      },
      typescript: {},
    },
  },
  parser: '@typescript-eslint/parser',
  parserOptions: {
    ecmaFeatures: {
      jsx: true,
    },
    ecmaVersion: 12,
    sourceType: 'module',
  },
  plugins: ['react', '@typescript-eslint'],
  rules: {
    'react/jsx-filename-extension': [2, { extensions: ['.js', '.jsx', '.ts', '.tsx'] }],
    'prettier/prettier': [
      1,
      {
        useTabs: false,
        printWidth: 120,
        tabWidth: 2,
        singleQuote: true,
        semi: false,
      },
    ],
    'react/react-in-jsx-scope': 'off',
    'no-use-before-define': 'off',
    '@typescript-eslint/no-use-before-define': ['error'],
    'no-unused-vars': 'off',
  },
}