.eslintrc.js

module.exports = {
  env: {
    browser: true,
    es2021: true,
  },
  extends: [
    'plugin:react/recommended',
    'airbnb',
    'eslint-config-prettier',
  ],
  parser: '@typescript-eslint/parser',
  parserOptions: {
    ecmaFeatures: {
      jsx: true,
    },
    ecmaVersion: 12,
    sourceType: 'module',
  },
  plugins: [
    'react',
    '@typescript-eslint',
  ],
  rules: {
    'no-use-before-define': 'off',
    '@typescript-eslint/no-use-before-define': ['error'],
    // should be rewritten as `['error', { allowAsStatement: true }]` in ESLint 7 or later
    // SEE: https://github.com/typescript-eslint/typescript-eslint/issues/1184
    'no-void': ['error', { allowAsStatement: true }],
    '@typescript-eslint/no-unused-vars': [
      'error',
      {
        vars: 'all',
        args: 'after-used',
        argsIgnorePattern: '_',
        ignoreRestSiblings: false,
        varsIgnorePattern: '_',
      },
    ],
    // 'import/extensions': [
    //   'error',
    //   'ignorePackages',
    //   {
    //     js: 'never',
    //     jsx: 'never',
    //     ts: 'never',
    //     tsx: 'never',
    //   },
    // ],
    'react/jsx-filename-extension': [
      'error',
      {
        extensions: ['.jsx', '.tsx'],
      },
    ],
    'react/react-in-jsx-scope': 'off',
    // temporary
    'import/extensions': 'off',
    'import/no-unresolved': 'off',
    'import/prefer-default-export': 'off',
    'react/function-component-definition': [2, { "namedComponents": "arrow-function" }],
  },
  overrides: [
    {
      files: ['*.tsx'],
      rules: {
        'react/prop-types': 'off',
      },
    },
  ],
  settings: {
    'import/resolver': {
      node: {
        paths: ['src'],
      },
    },
  },
};