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An async function is a function declared with the async keyword which enables asynchronous, promise-based behavior to be written in a cleaner style by avoiding promise chains. These functions can contain zero or more await expressions.
Let's take a below async function example,
javascript
1async function logger() {
2
3let data = await fetch("http://someapi.com/users"); // pause until fetch returns
4
5console.log(data);
6}
7
8logger();It is basically syntax sugar over ES2015 promises and generators.
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