.eslintrc.js

module.exports = {
  extends: [
    'airbnb',
    'react-app',
    'plugin:jsx-a11y/recommended',
    'plugin:import/typescript',
    'prettier',
  ],
  plugins: ['jsx-a11y', 'prettier', 'import'],
  env: {
    browser: true,
    node: true,
    jest: true,
    es6: true,
  },
  rules: {
    'prettier/prettier': [
      'error',
      {
        endOfLine: 'auto',
      },
    ],
    'react/jsx-filename-extension': [
      1,
      {
        extensions: ['.ts', '.tsx', '.js', '.jsx'],
      },
    ],
    'jsx-a11y/anchor-is-valid': [
      'warn',
      {
        aspects: ['invalidHref'],
      },
    ],
    'no-bitwise': 'off',
    'import/extensions': [
      'error',
      'ignorePackages',
      {
        js: 'never',
        jsx: 'never',
        ts: 'never',
        tsx: 'never',
      },
    ],
    'react/jsx-uses-react': 'off',
    'react/react-in-jsx-scope': 'off',
    'react/require-default-props': 'off',
    'import/prefer-default-export': 'off',
    'no-use-before-define': 'off',
    '@typescript-eslint/no-use-before-define': ['error'],
    'import/no-extraneous-dependencies': [
      'error',
      {
        devDependencies: [
          '**/*.test.{js,jsx,ts,tsx}',
          '**/test/**',
          '**/setupTests.ts',
          '**/svgTransform.js',
        ],
      },
    ],
    'no-shadow': 'off',
    '@typescript-eslint/no-shadow': 'error',
    'no-promise-executor-return': 'off',
    'react/function-component-definition': 'off',
  },
  parser: '@typescript-eslint/parser',
  parserOptions: {
    allowImportExportEverywhere: true,
  },
  globals: {
    ga: true,
  },
}