# javascript-best-practices

> Modern JavaScript best practices and performance optimization guidelines. Use when writing, reviewing, or refactoring JavaScript code to ensure optimal performance, maintainability, and modern patterns.

- Author: Lonolf
- Repository: BlackBytesSa/agent-skills
- Version: 20260127215239
- Stars: 0
- Forks: 0
- Last Updated: 2026-02-06
- Source: https://github.com/BlackBytesSa/agent-skills
- Web: https://mule.run/skillshub/@@BlackBytesSa/agent-skills~javascript-best-practices:20260127215239

---

---
name: javascript-best-practices
description: Modern JavaScript best practices and performance optimization guidelines. Use when writing, reviewing, or refactoring JavaScript code to ensure optimal performance, maintainability, and modern patterns.
license: MIT
metadata:
  author: your-name
  version: "1.0.0"
---

# JavaScript Best Practices

Comprehensive guide for modern JavaScript development covering performance, code quality, and best practices.

## When to Apply

Reference these guidelines when:
- Writing new JavaScript code
- Reviewing code for performance or quality issues
- Refactoring existing JavaScript code
- Optimizing application performance
- Ensuring code maintainability

## Rule Categories by Priority

| Priority | Category | Impact | Prefix |
|----------|----------|--------|--------|
| 1 | Performance | CRITICAL | `perf-` |
| 2 | Async Patterns | HIGH | `async-` |
| 3 | Code Quality | MEDIUM | `quality-` |
| 4 | Modern Syntax | MEDIUM | `modern-` |
| 5 | Error Handling | HIGH | `error-` |

## Quick Reference

### 1. Performance (CRITICAL)

- `perf-example-1` - Description placeholder
- `perf-example-2` - Description placeholder

### 2. Async Patterns (HIGH)

- `async-example-1` - Description placeholder
- `async-example-2` - Description placeholder

### 3. Code Quality (MEDIUM)

- `quality-example-1` - Description placeholder
- `quality-example-2` - Description placeholder

### 4. Modern Syntax (MEDIUM)

- `modern-example-1` - Description placeholder
- `modern-example-2` - Description placeholder

### 5. Error Handling (HIGH)

- `error-example-1` - Description placeholder
- `error-example-2` - Description placeholder

## How to Use

Read individual rule files for detailed explanations and code examples:

```
rules/perf-example-1.md
rules/async-example-1.md
```

Each rule file contains:
- Brief explanation of why it matters
- Incorrect code example with explanation
- Correct code example with explanation
- Additional context and references

## Full Compiled Document

For the complete guide with all rules expanded: `AGENTS.md`