19 lines
726 B
TypeScript
19 lines
726 B
TypeScript
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export default function generateUUID() {
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// Public Domain/MIT
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var d = new Date().getTime(); //Timestamp
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var d2 = (typeof performance !== 'undefined' && performance.now && performance.now() * 1000) || 0; //Time in microseconds since page-load or 0 if unsupported
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return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) {
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var r = Math.random() * 16; //random number between 0 and 16
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if (d > 0) {
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//Use timestamp until depleted
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r = (d + r) % 16 | 0;
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d = Math.floor(d / 16);
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} else {
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//Use microseconds since page-load if supported
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r = (d2 + r) % 16 | 0;
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d2 = Math.floor(d2 / 16);
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}
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return (c === 'x' ? r : (r & 0x3) | 0x8).toString(16);
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});
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}
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