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30-seconds-of-code/snippets/UUIDGenerator.md
Stefan Feješ 0c129cdd02 update snippets 0-All
2017-12-27 16:32:27 +02:00

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UUIDGenerator

Generates a UUID.

Use crypto API to generate a UUID, compliant with RFC4122 version 4.

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'