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UUID::V4 zef:masukomi last updated on 2022-10-01



UUID::V4 - generates a random v4 UUID (Universally Unique IDentifier)


use UUID::V4;

# generate a uuid
my $uuid = uuid-v4(); # 62353163-3235-4165-b337-316436626539

# validate a string against uuid-v4 regexp
my $confirmation = is-uuid-v4($uuid); # True


UUID::V4 generates a random v4 UUID (Universally Unique IDentifier). See the RFC 4122 specification for details.


masukomi (a.k.a Kay Rhodes) based on Nobuyoshi Nakada's work in Ruby.

Copyright 2022

This library is free software; you can redistribute it and/or modify it under the MIT license.


Unfortunately LibUUID requires the uuid dynamic library which didn't exist on my mac. This library uses Crypt::Random which doesn't suffer from that problem and should work on all Unix / Linux systems and Windows.

sub uuid-v4

sub uuid-v4() returns Str

Generate a UUID in V4 format.

sub is-uuid-v4

sub is-uuid-v4(
    Str $maybe_uuid
) returns Bool

Test if a string matches the UUID v4 format.