.eslintrc.js

module.exports = {
  env: {
    browser: true,
    es6: true,
    es2021: true,
  },
  extends: [
    'react-app',
    'airbnb',
    'plugin:jsx-a11y/recommended',
    'prettier',
    'prettier/react',
    'react-app/jest',
  ],
  parser: '@typescript-eslint/parser',
  parserOptions: {
    ecmaFeatures: {
      jsx: true,
    },
    ecmaVersion: 12,
    sourceType: 'module',
  },
  plugins: ['react', 'import', '@typescript-eslint', 'jsx-a11y', 'prettier'],
  rules: {
    quotes: [2, 'single', { avoidEscape: true }],
    'jsx-quotes': [2, 'prefer-single'],
    'react/jsx-filename-extension': [
      2,
      { extensions: ['.js', '.jsx', '.ts', '.tsx'] },
    ],
    'import/extensions': [
      'error',
      'ignorePackages',
      {
        js: 'never',
        mjs: 'never',
        jsx: 'never',
        ts: 'never',
        tsx: 'never',
      },
    ],
    'no-use-before-define': 'off',
    '@typescript-eslint/no-use-before-define': ['error'],
    'import/prefer-default-export': 'off',
    'react/prop-types': 'off',
    'no-shadow': 'off',
    '@typescript-eslint/no-shadow': 'error',
  },
  settings: {
    'import/resolver': {
      typescript: {},
    },
  },
};