.eslintrc.js

module.exports = {
  env: {
    es2020: true,
    node: true,
  },
  ignorePatterns: ['**/node_modules/**', '**/dist/**'],
  extends: [
    'eslint:recommended',
    'plugin:import/recommended',
    'plugin:@typescript-eslint/recommended',
    'plugin:prettier/recommended',
  ],
  parser: '@typescript-eslint/parser',
  parserOptions: {
    tsconfigRootDir: __dirname,
  },
  plugins: ['@typescript-eslint'],
  rules: {
    'no-console': [
      'error',
      {
        allow: ['warn', 'error', 'info'],
      },
    ],

    // Prettier
    'prettier/prettier': [
      'error',
      {
        singleQuote: true,
        semi: true,
        trailingComma: 'es5',
        jsxSingleQuote: true,
        bracketSameLine: false,
        arrowParens: 'avoid',
      },
    ],

    // Plugin import
    'import/no-unresolved': 'off',
    'import/order': [
      'error',
      {
        groups: ['builtin', 'external', 'internal'],
        'newlines-between': 'always',
        alphabetize: {
          order: 'asc',
          caseInsensitive: true,
        },
      },
    ],

    // Typescript
    '@typescript-eslint/ban-ts-comment': [
      'error',
      { 'ts-expect-error': 'allow-with-description' },
    ],
    '@typescript-eslint/no-unused-vars': 'error',
    '@typescript-eslint/no-namespace': ['error', { allowDeclarations: true }],
  },
};