website/content/posts/javascript-async-patterns.md

title, date, categories, tags

title	date	categories	tags
Modern JavaScript Async Patterns	2024-08-12	tech tutorial	javascript async promises

Modern JavaScript Async Patterns

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

Promise Chains vs Async/Await

// 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!