.eslintrc.js

module.exports = {
  extends: ['airbnb', 'plugin:@typescript-eslint/recommended'],
  parser: '@typescript-eslint/parser',
  plugins: ['@typescript-eslint', 'prettier'],
  env: {
    browser: true,
    node: true,
    jest: true,
  },
  settings: {
    'import/parsers': {
      '@typescript-eslint/parser': ['.ts', '.tsx'],
    },
    'import/resolver': {
      typescript: {},
    },
  },
  rules: {
    'import/extensions': [
      'error',
      'ignorePackages',
      {
        js: 'never',
        jsx: 'never',
        ts: 'never',
        tsx: 'never',
      },
    ],
    'react/jsx-filename-extension': [
      2,
      { extensions: ['.js', '.jsx', '.ts', '.tsx'] },
    ],
    'import/no-extraneous-dependencies': [
      2,
      { devDependencies: ['**/test.tsx', '**/test.ts'] },
    ],
    "jsx-a11y/click-events-have-key-events": 0,
    '@typescript-eslint/indent': [2, 2],
    '@typescript-eslint/explicit-function-return-type': [
      'error',
      {
        allowTypedFunctionExpressions: true,
      },
    ],
    'max-len': ['error', { code: 120 }],
  },
};