.eslintrc.js

module.exports = {
  env: {
    browser: true,
    es6: true,
    jest: true,
  },
  extends: [
    'react-app',
    'airbnb',
    'plugin:@typescript-eslint/recommended',
    'prettier',
  ],
  globals: {
    Atomics: 'readonly',
    SharedArrayBuffer: 'readonly',
  },
  parserOptions: {
    ecmaFeatures: {
      jsx: true,
    },
    ecmaVersion: 2018,
    sourceType: 'module',
  },
  plugins: ['react', 'import', 'jsx-a11y'],
  rules: {
    "import/extensions": [
      "error",
      "ignorePackages",
      {
        "js": "never",
        "jsx": "never",
        "ts": "never",
        "tsx": "never"
      }
    ],
    'react/jsx-filename-extension': [
      'error',
      {
        extensions: ['.tsx'],
      },
    ],
    'import/prefer-default-export': 'off',
    '@typescript-eslint/explicit-function-return-type': 'off',
    '@typescript-eslint/explicit-member-accessibility': 'off',
    "no-use-before-define": "off",
    "@typescript-eslint/no-use-before-define": ["error"]
  },
  settings: {
    'import/parsers': {
      '@typescript-eslint/parser': ['.ts', '.tsx'],
    },
    'import/resolver': {
      "node": {
        "extensions": [".js", ".jsx", ".ts", ".tsx"]
      },
      typescript: {},
    },
  },
};