javascript-codelisted

# JavaScript/TypeScript Code Skill This skill manages JavaScript and TypeScript specific development practices across Node.js, browsers, and edge runtimes. ## When to use this skill - When writing or maintaining JS/TS applications. - When dealing with asynchronous programming (Promises, async/await). - When configuring module systems (ESM vs CommonJS). ## Guidelines - Prefer TypeScript over vanilla JavaScript for large projects to leverage static typing. - Always use strict equality (`===`) and avoid loose equality (`==`). - Avoid mutating state when possible; prefer functional approaches like `map`, `filter`, and `reduce`. - Use `const` by default, `let` when necessary, and never use `var`.