Who is this Claude Code skill intended for?

It is designed for developers of all levels who want to ensure their AI assistant provides technically accurate, high-quality JavaScript code and explanations.

What concepts are covered in the JavaScript Mastery skill?

This skill covers over 33 essential areas including closures, hoisting, promises, async/await, the event loop, functional programming, and prototypal inheritance.

Is the content updated for modern JavaScript versions?

Yes, it includes comprehensive documentation on modern ES6+ features such as optional chaining, nullish coalescing, modules, and spread/rest operators.

How can this skill help with debugging?

It provides detailed explanations of tricky language behaviors like type coercion, 'this' binding, and microtask execution order, making it easier to identify and fix subtle bugs.

JavaScript Mastery

Name: JavaScript Mastery
Author: claudiodearaujo

byclaudiodearaujo

Learning & Documentation

Provides a comprehensive reference of 33+ essential JavaScript concepts to improve code quality, debugging, and language proficiency.

About

JavaScript Mastery is a specialized skill for Claude Code designed to deepen your understanding of the JavaScript ecosystem. Inspired by the renowned '33-js-concepts' curriculum, it serves as a real-time mentor for everything from fundamental primitive types and type coercion to advanced topics like the Event Loop, prototypal inheritance, and functional programming patterns. This skill is particularly useful when you need to explain complex logic, debug tricky language behaviors, or ensure your codebase adheres to modern ES6+ best practices and efficient execution patterns.

Key Features

Functional programming techniques like currying, composition, and HOFs
Detailed explanations of Scope, Closures, and the 'this' keyword
0 GitHub stars
Comprehensive guides for 33+ core JavaScript concepts
Modern ES6+ syntax reference including destructuring and optional chaining
Deep dives into asynchronous patterns including Promises and Async/Await

Use Cases

Reviewing code to ensure alignment with JavaScript best practices
Explaining and teaching fundamental JS concepts during pair programming
Debugging complex issues related to the Event Loop or lexical scope

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add claudiodearaujo/izacenter javascript-mastery

For use in Claude.ai and ChatGPT

Download Skill

GitHub