---
title: "Modern JavaScript Async Patterns"
date: 2024-08-12
categories: ["tech", "tutorial"]
tags: ["javascript", "async", "promises"]
---

# Modern JavaScript Async Patterns

Exploring the evolution from callbacks to async/await and beyond.

## Promise Chains vs Async/Await

```javascript
// Promise chains
fetchUser(id)
  .then(user => fetchPosts(user.id))
  .then(posts => renderPosts(posts))
  .catch(handleError);

// Async/await
try {
  const user = await fetchUser(id);
  const posts = await fetchPosts(user.id);
  renderPosts(posts);
} catch (error) {
  handleError(error);
}
```

The async/await syntax makes asynchronous code much more readable!