16 lines
597 B
TypeScript
16 lines
597 B
TypeScript
/** UUID v4 for browser operations, including private LAN HTTP origins. */
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export function randomId(): string {
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// Unlike randomUUID(), getRandomValues is available outside secure contexts.
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const bytes = globalThis.crypto.getRandomValues(new Uint8Array(16));
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bytes[6] = (bytes[6] & 0x0f) | 0x40;
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bytes[8] = (bytes[8] & 0x3f) | 0x80;
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const hex = Array.from(bytes, (byte) => byte.toString(16).padStart(2, '0'));
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return [
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hex.slice(0, 4).join(''),
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hex.slice(4, 6).join(''),
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hex.slice(6, 8).join(''),
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hex.slice(8, 10).join(''),
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hex.slice(10).join(''),
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].join('-');
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}
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