javascript-pro

Master modern JavaScript with ES6+, async patterns, and Node.js APIs. Handles promises, event loops, and browser/Node compatibility.

24,269 stars

Best use case

javascript-pro is best used when you need a repeatable AI agent workflow instead of a one-off prompt.

Master modern JavaScript with ES6+, async patterns, and Node.js APIs. Handles promises, event loops, and browser/Node compatibility.

Teams using javascript-pro should expect a more consistent output, faster repeated execution, less prompt rewriting.

When to use this skill

  • You want a reusable workflow that can be run more than once with consistent structure.

When not to use this skill

  • You only need a quick one-off answer and do not need a reusable workflow.
  • You cannot install or maintain the underlying files, dependencies, or repository context.

Installation

Claude Code / Cursor / Codex

$curl -o ~/.claude/skills/javascript-pro/SKILL.md --create-dirs "https://raw.githubusercontent.com/davila7/claude-code-templates/main/cli-tool/components/skills/development/javascript-pro/SKILL.md"

Manual Installation

  1. Download SKILL.md from GitHub
  2. Place it in .claude/skills/javascript-pro/SKILL.md inside your project
  3. Restart your AI agent — it will auto-discover the skill

How javascript-pro Compares

Feature / Agentjavascript-proStandard Approach
Platform SupportNot specifiedLimited / Varies
Context Awareness High Baseline
Installation ComplexityUnknownN/A

Frequently Asked Questions

What does this skill do?

Master modern JavaScript with ES6+, async patterns, and Node.js APIs. Handles promises, event loops, and browser/Node compatibility.

Where can I find the source code?

You can find the source code on GitHub using the link provided at the top of the page.

Related Guides

SKILL.md Source

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 with race condition prevention
- Module structure with clean exports
- Jest tests with async test patterns
- Performance profiling results
- Polyfill strategy for browser compatibility

Support both Node.js and browser environments. Include JSDoc comments.

Related Skills

javascript-testing-patterns

24269
from davila7/claude-code-templates

Comprehensive guide for implementing robust testing strategies in JavaScript/TypeScript applications using modern testing frameworks and best practices.

n8n-code-javascript

24269
from davila7/claude-code-templates

Write JavaScript code in n8n Code nodes. Use when writing JavaScript in n8n, using $input/$json/$node syntax, making HTTP requests with $helpers, working with dates using DateTime, troubleshooting Code node errors, or choosing between Code node modes.

javascript-mastery

24269
from davila7/claude-code-templates

Comprehensive JavaScript reference covering 33+ essential concepts every developer should know. From fundamentals like primitives and closures to advanced patterns like async/await and functional programming. Use when explaining JS concepts, debugging JavaScript issues, or teaching JavaScript fundamentals.

async-python-patterns

24269
from davila7/claude-code-templates

Comprehensive guidance for implementing asynchronous Python applications using asyncio, concurrent programming patterns, and async/await for building high-performance, non-blocking systems.

slack-automation

24269
from davila7/claude-code-templates

Automate Slack workspace operations including messaging, search, channel management, and reaction workflows through Composio's Slack toolkit.

linear-automation

24269
from davila7/claude-code-templates

Automate Linear tasks via Rube MCP (Composio): issues, projects, cycles, teams, labels. Always search tools first for current schemas.

jira-automation

24269
from davila7/claude-code-templates

Automate Jira tasks via Rube MCP (Composio): issues, projects, sprints, boards, comments, users. Always search tools first for current schemas.

gitops-workflow

24269
from davila7/claude-code-templates

Complete guide to implementing GitOps workflows with ArgoCD and Flux for automated Kubernetes deployments.

github-automation

24269
from davila7/claude-code-templates

Automate GitHub repositories, issues, pull requests, branches, CI/CD, and permissions via Rube MCP (Composio). Manage code workflows, review PRs, search code, and handle deployments programmatically.

github-actions-templates

24269
from davila7/claude-code-templates

Production-ready GitHub Actions workflow patterns for testing, building, and deploying applications.

zustand-store-ts

24269
from davila7/claude-code-templates

Create Zustand stores following established patterns with proper TypeScript types and middleware.

zod-validation-expert

24269
from davila7/claude-code-templates

Expert in Zod — TypeScript-first schema validation. Covers parsing, custom errors, refinements, type inference, and integration with React Hook Form, Next.js, and tRPC.