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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | 1x 10x 10x 10x 10x 310x 310x 110x 110x 110x 310x 200x 200x 200x 200x 310x 10x 10x | export const uuidv4 = () => {
// Public Domain/MIT
var d = new Date().getTime(); //Timestamp
var d2 = (typeof performance !== 'undefined' && performance.now && performance.now() * 1000) || 0; //Time in microseconds since page-load or 0 if unsupported
return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) {
var r = Math.random() * 16; //random number between 0 and 16
if (d > 0) {
//Use timestamp until depleted
r = (d + r) % 16 | 0;
d = Math.floor(d / 16);
} else {
//Use microseconds since page-load if supported
r = (d2 + r) % 16 | 0;
d2 = Math.floor(d2 / 16);
}
return (c === 'x' ? r : (r & 0x3) | 0x8).toString(16);
});
};
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