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21 lines
542 B
TypeScript
21 lines
542 B
TypeScript
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
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import { bytesToUuid } from "./_common.ts";
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const UUID_RE = new RegExp(
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"^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$",
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"i",
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);
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export function validate(id: string): boolean {
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return UUID_RE.test(id);
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}
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export function generate(): string {
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const rnds = crypto.getRandomValues(new Uint8Array(16));
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rnds[6] = (rnds[6] & 0x0f) | 0x40; // Version 4
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rnds[8] = (rnds[8] & 0x3f) | 0x80; // Variant 10
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return bytesToUuid(rnds);
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}
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