.eslintrc.js

module.exports = {
  env: {
    browser: true,
    es2021: true,
    jest: true,
  },
  extends: [
    'airbnb-base',
    'prettier', // Prettier modules must go last.
  ],
  parser: '@typescript-eslint/parser',
  parserOptions: {
    ecmaVersion: 12,
    sourceType: 'module',
    // project: './tsconfig.json',
    tsconfigRootDir: __dirname,
  },
  settings: {
    'import/resolver': {
      node: {
        extensions: ['.js', '.jsx', '.ts', '.tsx'],
      },
    },
  },
  plugins: ['@typescript-eslint', 'prettier'],
  rules: {
    'import/extensions': [
      'error',
      'ignorePackages',
      {
        js: 'never',
        jsx: 'never',
        ts: 'never',
        tsx: 'never',
      },
    ],
    'import/prefer-default-export': 'off',
    'class-methods-use-this': 'off',
    'prettier/prettier': [
      'error',
      {
        endOfLine: 'auto',
      },
    ],
    'no-unused-vars': 'warn',
    'no-plusplus': [
      'warn',
      {
        allowForLoopAfterthoughts: true,
      },
    ],
  },
  ignorePatterns: ['dist/**', 'coverage/**'],
};