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Update UUIDGeneratorNode.md

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Angelos Chalaris
2022-03-14 17:41:48 +02:00
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@ -3,13 +3,14 @@ title: Generate UUID (Node.js)
tags: node,random
expertise: intermediate
firstSeen: 2017-12-29T09:47:10+02:00
lastUpdated: 2020-10-22T20:24:44+03:00
lastUpdated: 2022-03-14T17:41:43+03:00
---
Generates a UUID in Node.JS.
- Use `crypto.randomBytes()` to generate a UUID, compliant with [RFC4122](https://www.ietf.org/rfc/rfc4122.txt) version 4.
- Use `Number.prototype.toString()` to convert it to a proper UUID (hexadecimal string).
- [`crypto.randomUUID()`](https://nodejs.org/api/crypto.html#cryptorandomuuidoptions) provides similar functionality.
```js
const crypto = require('crypto');