nhb-express/templates/prettier-eslint/eslint.config.mjs

Minimal Express + TypeScript scaffolder with modular structure and flexible stack choices.

// @ts-check

import jsConfig from '@eslint/js';
import tsEslintPlugin from '@typescript-eslint/eslint-plugin';
import tsParser from '@typescript-eslint/parser';
import prettierConfig from 'eslint-config-prettier';
import prettier from 'eslint-plugin-prettier';
import globals from 'globals';
import tseslint from 'typescript-eslint';

/** @type {import('eslint').Linter.Config[]} */
export default [
	{
		ignores: ['node_modules/*', 'dist/*', 'generated'],
	},
	{
		languageOptions: {
			globals: {
				...globals.node,
				process: 'readonly',
			},
			parser: tsParser,
			ecmaVersion: 'latest',
			sourceType: 'module',
		},
	},
	jsConfig.configs.recommended,
	...tseslint.configs.recommended,
	{
		plugins: {
			prettier,
		},
		rules: {
			...tsEslintPlugin.configs.recommended.rules,
			...prettierConfig.rules,
			'prettier/prettier': 'off',
			'no-unused-expressions': 'error',
			'prefer-const': 'error',
			// 'no-console': ['warn', { allow: ['info', 'warn', 'error'] }],
			'no-undef': 'error',
			'@typescript-eslint/no-empty-object-type': 'off',
			'@typescript-eslint/no-unused-expressions': 'error',
			'@typescript-eslint/consistent-type-imports': ['warn', { prefer: 'type-imports' }],
			'no-unused-vars': [
				'off',
				{
					args: 'all',
					argsIgnorePattern: '^_',
					caughtErrors: 'all',
					caughtErrorsIgnorePattern: '^_',
					destructuredArrayIgnorePattern: '^_',
					varsIgnorePattern: '^_',
					ignoreRestSiblings: false,
				},
			],
			'@typescript-eslint/no-unused-vars': [
				'error',
				{
					args: 'all',
					argsIgnorePattern: '^_',
					caughtErrors: 'all',
					caughtErrorsIgnorePattern: '^_',
					destructuredArrayIgnorePattern: '^_',
					varsIgnorePattern: '^_',
					ignoreRestSiblings: false,
				},
			],
		},
	},
	{
		files: [
			'src/app/types/**/*.ts',
			'src/app/modules/**/*.types.ts',
			'src/app/modules/**/*.interfaces.ts',
		],
		rules: { 'no-unused-vars': 'off', 'no-undef': 'off' },
	},
	{
		files: ['**/*.ts', '**/*.tsx', '**/*.js', '**/*.jsx'],
		rules: {
			// Disallow ONLY `console.log`
			'no-restricted-syntax': [
				'warn',
				{
					selector:
						"CallExpression[callee.object.name='console'][callee.property.name='log']",
					message:
						'Avoid using `console.log`; use `console.info/warn/error/table/dir` etc. instead.',
				},
			],
		},
	},
	// {
	//   files: ['src/app/**/*types.ts', 'src/app/**/types/*.ts'],
	//   rules: { "@typescript-eslint/no-explicit-any": "off" }
	// },
	{
		files: ['dist/**/*.js', '**.cjs', 'scripts/*.cjs'],
		rules: { '@typescript-eslint/no-require-imports': 'off' },
	},
];