Asynchronous programming is one of the first real hurdles in JavaScript. Promises helped, but async/await made it genuinely readable.
What is async/await?
async/await is syntactic sugar built on top of Promises. When you mark a function as async, it always returns a Promise. Inside it, await pauses execution until the Promise resolves.
async function getData() {
const response = await fetch("https://api.example.com/data");
const json = await response.json();
return json;
}Why does this matter?
Before async/await, chaining .then() callbacks led to deeply nested, hard-to-read code. Now your async logic reads like synchronous code — top to bottom, easy to follow.
Error handling
Wrap your await calls in try/catch to handle failures cleanly:
async function getData() {
try {
const response = await fetch("https://api.example.com/data");
return await response.json();
} catch (err) {
console.error("Failed:", err);
}
}That is all there is to it. Once it clicks, you will wonder how you lived without it.