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UUIDGeneratorBrowser javascript Code Snippet in 2023

browserrandomintermediate

Last Updated: 4 February 2023

Generates a UUID in a browser.

  • Use Crypto.getRandomValues() to generate a UUID, compliant with RFC4122 version 4.
  • Use Number.prototype.toString(16) to convert it to a proper UUID.
const UUIDGeneratorBrowser = () => ([1e7] + -1e3 + -4e3 + -8e3 + -1e11).replace(/[018]/g, c => ( c ^ (crypto.getRandomValues(new Uint8Array(1))[0] & (15 >> (c / 4))) ).toString(16) );
UUIDGeneratorBrowser(); // '7982fcfe-5721-4632-bede-6000885be57d'

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