Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
The randomUUID() method of the Crypto interface is used to generate a v4 UUID using a cryptographically secure random number generator.
js
randomUUID()
None.
A string containing a randomly generated, 36 character long v4 UUID.
The method is accessed through the global crypto property.
js
/* Assuming that self.crypto.randomUUID() is available */ let uuid = self.crypto.randomUUID(); console.log(uuid); // for example "36b8f84d-df4e-4d49-b662-bcde71a8764f"
| Specification |
|---|
| Web Cryptography API # Crypto-method-randomUUID |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
randomUUID |
92 | 92 | 95 | No | 78 | 15.4 | 92 | 92 | 95 | 65 | 15.4 | 16.0 |
Web Crypto APIcrypto to get a Crypto object.Crypto.getRandomValues, a source for arbitrary amounts of secure random bytes.
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https://developer.mozilla.org/en-US/docs/Web/API/Crypto/randomUUID