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JavaScript

JavaScript Async/Await

JavaScript async/await makes promises easier to read and write.

Read Time

5 min read

Difficulty

Beginner

Last Updated

Jun 15, 2026

Version

v1.0.0

Introduction

JavaScript added `async` and `await` to make asynchronous code look exactly like normal, synchronous code. Instead of chaining multiple `.then()` methods together, developers simply tell the code to pause and wait for the promise to finish.

Example

1/* this uses async/await */
2async function getData() {
3  let response = await fetch("data.json");
4  let data = await response.json();
5  console.log(data);
6}

Key Points

The `async` keyword turns a function into a promise.
The `await` keyword pauses execution until the promise finishes.
You can only use `await` inside an `async` function.
It provides much cleaner error handling using `try/catch`.

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