.eslintrc.js

module.exports = {
  env: {
    commonjs: true,
    es2021: true,
    node: true,
  },
  root: true,
  extends: ['airbnb-base', 'plugin:@typescript-eslint/recommended', 'prettier'],
  parser: '@typescript-eslint/parser',
  parserOptions: {
    ecmaVersion: 12,
    sourceType: 'module',
  },
  plugins: ['@typescript-eslint'],
  rules: {
    'class-methods-use-this': 'off',
    'import/no-extraneous-dependencies': ['error', { devDependencies: true }],
    'import/prefer-default-export': 'off', // Default exports are bad.
    'no-console': 'off',
    // The no-shadow rule set in airbnb-base generates false positives with TS.
    // https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/docs/rules/no-shadow.md
    'no-shadow': 'off',
    '@typescript-eslint/no-shadow': ['error'],
    'no-use-before-define': 'off',
    '@typescript-eslint/no-empty-interface': [
      'error',
      {
        allowSingleExtends: true,
      },
    ],
    '@typescript-eslint/no-use-before-define': ['error', { functions: false }],
  },
  overrides: [
    {
      rules: {
        'import/no-unresolved': ['off'],
        'import/extensions': ['off'],
        'no-console': 'off',
      },
      files: ['**/*.ts', '**/*.tsx'],
    },
  ],
};