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30-seconds-of-code/snippets/UUIDGenerator.md
Stefan Feješ 82b850fd00 Fix test cases
2017-12-17 22:26:07 +01:00

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### UUIDGenerator
Generates a UUID.
Use `crypto` API to generate a UUID, compliant with [RFC4122](https://www.ietf.org/rfc/rfc4122.txt) version 4.
```js
const UUIDGenerator = () =>
([1e7] + -1e3 + -4e3 + -8e3 + -1e11).replace(/[018]/g, c =>
(c ^ crypto.getRandomValues(new Uint8Array(1))[0] & 15 >> c / 4).toString(16)
);
// UUIDGenerator() -> '7982fcfe-5721-4632-bede-6000885be57d'
```