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Update snippet descriptions

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Isabelle Viktoria Maciohsek
2020-10-22 20:24:44 +03:00
parent 5cb69e3c5c
commit aa425812b4
40 changed files with 151 additions and 87 deletions
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8
snippets/UUIDGeneratorBrowser.md
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@ -5,12 +5,16 @@ tags: browser,random,intermediate
Generates a UUID in a browser.
- Use `crypto` API to generate a UUID, compliant with [RFC4122](https://www.ietf.org/rfc/rfc4122.txt) version 4.
- Use `Crypto.getRandomValues()` to generate a UUID, compliant with [RFC4122](https://www.ietf.org/rfc/rfc4122.txt) version 4.
- Use `Number.prototype.toString(16)` to convert it to a proper UUID.
```js
const UUIDGeneratorBrowser = () =>
([1e7] + -1e3 + -4e3 + -8e3 + -1e11).replace(/[018]/g, c =>
(c ^ (crypto.getRandomValues(new Uint8Array(1))[0] & (15 >> (c / 4)))).toString(16)
(
c ^
(crypto.getRandomValues(new Uint8Array(1))[0] & (15 >> (c / 4)))
).toString(16)
);
```