Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
Note: This feature is available in Web Workers.
The randomUUID() method of the Crypto interface is used to generate a v4 UUID using a cryptographically secure random number generator.
randomUUID()None.
A string containing a randomly generated, 36 character long v4 UUID.
/* Assuming that self.crypto.randomUUID() is available */
let uuid = self.crypto.randomUUID();
console.log(uuid); // for example "36b8f84d-df4e-4d49-b662-bcde71a8764f"Crypto.getRandomValues, a source for arbitrary amounts of secure random bytes.