Crypto: randomUUID() method

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The randomUUID() method of the {{domxref("Crypto")}} interface is used to generate a v4 {{Glossary("UUID")}} using a cryptographically secure random number generator.

Syntax

randomUUID()

Parameters

None.

Return value

A string containing a randomly generated, 36 character long v4 UUID.

Examples

/* Assuming that self.crypto.randomUUID() is available */

let uuid = self.crypto.randomUUID();
console.log(uuid); // for example "36b8f84d-df4e-4d49-b662-bcde71a8764f"

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}

See also

• Web Crypto API
• {{ domxref("Crypto.getRandomValues") }}, a source for arbitrary amounts of secure random bytes.