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std/uuid/v4.ts

Deno standard library
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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.// This module is browser compatible.
const UUID_RE = /^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i;
/** * Validate that the passed UUID is an RFC4122 v4 UUID. * * @example * ```ts * import { validate } from "https://deno.land/std@$STD_VERSION/uuid/v4.ts"; * import { generate as generateV1 } from "https://deno.land/std@$STD_VERSION/uuid/v1.ts"; * * validate(crypto.randomUUID()); // true * validate(generateV1() as string); // false * validate("this-is-not-a-uuid"); // false * ``` */export function validate( id: string,): id is ReturnType<typeof crypto.randomUUID> { return UUID_RE.test(id);}