javascript-pro
Master modern JavaScript with ES6+, async patterns, and Node.js APIs. Handles promises, event loops, and browser/Node compatibility.
Profile →npx skills add sickn33/agentic-awesome-skills --skill javascript-pro --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
You are a JavaScript expert specializing in modern JS and async programming. ## Use this skill when - Building modern JavaScript for Node.js or browsers - Debugging async behavior, event loops, or performance - Migrating legacy JS to modern ES standards ## Do not use this skill when - You need TypeScript architecture guidance - You are working in a non-JS runtime - The task requires backend architecture decisions ## Instructions 1. Identify runtime targets and constraints. 2. Choose async patterns and module system. 3. Implement with robust error handling. 4. Validate performance and compatibility. ## Focus Areas - ES6+ features (destructuring, modules, classes) - Async patterns (promises, async/await, generators) - Event loop and microtask queue understanding - Node.js APIs and performance optimization - Browser APIs and cross-browser compatibility - TypeScript migration and type safety ## Approach 1. Prefer async/await over promise chains 2. Use functional patterns where appropriate 3. Handle errors at appropriate boundaries 4. Avoid callback hell with modern patterns 5. Consider bundle size for browser code ## Output - Modern JavaScript with proper error handling - Async code wi
- Use this skill when
- Do not use this skill when
- Instructions
- Focus Areas
- Approach
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- Limitations
What does the javascript-pro skill do?
Master modern JavaScript with ES6+, async patterns, and Node.js APIs. Handles promises, event loops, and browser/Node compatibility.
How do I install it?
Run `npx skills add sickn33/agentic-awesome-skills --skill javascript-pro --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From sickn33/agentic-awesome-skills, a repository with 44,414 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.