@arlequins/eslint-config-typescript

Shared ESLint configuration for TypeScript. Built on the flat config (eslint.config.js) and includes TypeScript, Prettier, Import, and SonarJS rules.

Requirements: Node.js >= 22.x, ESLint 9+

Installation

Install the config in your project:

npm install @arlequins/eslint-config-typescript --save-dev

This config uses the following packages as peer dependencies, so they must be installed in your project as well:

npm install eslint typescript-eslint eslint-config-prettier eslint-plugin-prettier eslint-plugin-import eslint-import-resolver-typescript eslint-plugin-sonarjs globals prettier --save-dev

Usage

Create eslint.config.js (or eslint.config.mjs) at your project root and extend this config:

const config = require('@arlequins/eslint-config-typescript');

module.exports = [...config];

To add or override rules, append more config objects to the array:

const config = require('@arlequins/eslint-config-typescript');

module.exports = [
  ...config,
  {
    rules: {
      // Project-specific rule overrides
      '@typescript-eslint/no-unused-vars': 'error',
    },
  },
];

Included

• typescript-eslint recommended rules
• eslint-config-prettier (disables rules that conflict with Prettier)
• eslint-plugin-prettier (runs Prettier as an ESLint rule)
• eslint-plugin-import (static analysis for import/export)
• eslint-plugin-sonarjs (code smell and bug detection)
• Node / Jest globals
• Ignores **/node_modules, **/coverage, **/mocks

License

MIT