Modern JavaScript (ES6+) Expert Skill

Trigger On

• The user asks to write, debug, refactor, or review JavaScript code.
• The project directory contains *.js, *.mjs, or JavaScript configuration files (e.g., eslint.config.js, vite.config.js).
• HTML files (*.html) or Razor views (*.cshtml) contain inline <script> blocks or reference external .js files via <script src="...">.
• The target runtime is a modern browser (Chrome 80+, Firefox 78+, Safari 14+) or a pure JS environment.
• Code modernization is needed (e.g., converting var to const/let, callbacks to async/await, legacy scripts to ESM).