Chris Chen
18 lines
777 B
TypeScript
18 lines
777 B
TypeScript
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export class UuidUtils {
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public static generate() {
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var d = new Date().getTime();//Timestamp
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var d2 = (performance && 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){//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 {//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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} |