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snippets/js/s/sleep.md

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+---
+title: Delay async function execution
+type: snippet
+language: javascript
+tags: [function,promise]
+cover: sleepy-cat
+dateModified: 2020-10-22T20:24:30+03:00
+---
+
+Delays the execution of an asynchronous function.
+
+- Delay executing part of an `async` function, by putting it to sleep, returning a `Promise`.
+
+```js
+const sleep = ms => new Promise(resolve => setTimeout(resolve, ms));
+```
+
+```js
+async function sleepyWork() {
+  console.log("I'm going to sleep for 1 second.");
+  await sleep(1000);
+  console.log('I woke up after 1 second.');
+}
+```