UuidV4

Generates a random version-4 UUID as a string.

Module: Std::UUID

Signature

func UuidV4() -> String;

Returns

String — a new random UUID in canonical form, xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx (36 characters), with the version (4) and variant bits set.

Description

Produces a version-4 UUID with random bytes, lowercase hex, and the standard hyphen layout.

WARNING

The randomness is not cryptographically secure — see the module overview. Use it for identifiers, not secrets.

Example

import Std::UUID;
import Std::Io::PrintLine;

func Main() -> int {
    PrintLine(UUID::UuidV4());
    return 0;
}

See also

• Std::UUID — module overview
• UuidV4Bytes — the raw-bytes form
• UuidNil — the all-zero UUID