What are the benefits of using async/await in JavaScript?

What are the benefits of using async/await in JavaScript?

Async/await simplifies asynchronous code, making it easier to read and maintain. It allows you to write code that looks synchronous.

Can you give me an example of how it improves code readability?

Sure! Instead of chaining multiple .then() calls, you can use async/await to write cleaner code like this:

async function fetchData() { const data = await fetch('url'); const json = await data.json(); return json; }

This is much clearer than using nested promises.

Are there any performance drawbacks to using async/await?

Generally, no. Async/await is built on promises, so it doesn't introduce significant performance issues. However, improper use can lead to unhandled promise rejections.

How does it compare to traditional callback functions?

Async/await eliminates callback hell, making your code flatter and easier to follow. It also handles errors more gracefully with try/catch.