rx-player
Version:
Canal+ HTML5 Video Player
30 lines (29 loc) • 1.03 kB
JavaScript
import globalScope from "./global_scope";
import getMonotonicTimeStamp from "./monotonic_timestamp";
/**
* Create and return a Universally Unique IDentifier (UUID) as defined by
* RFC4122.
* Depending on browser API availability, we may be generating an approximation
* of what the RFC indicates instead.
* @returns {string}
*/
export default function createUuid() {
var _a;
if (typeof ((_a = globalScope.crypto) === null || _a === void 0 ? void 0 : _a.randomUUID) === "function") {
return globalScope.crypto.randomUUID();
}
let ts1 = new Date().getTime();
let ts2 = getMonotonicTimeStamp();
return "xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g, function (c) {
let r = Math.random() * 16;
if (ts1 > 0) {
r = (ts1 + r) % 16 | 0;
ts1 = Math.floor(ts1 / 16);
}
else {
r = (ts2 + r) % 16 | 0;
ts2 = Math.floor(ts2 / 16);
}
return (c === "x" ? r : (r & 0x3) | 0x8).toString(16);
});
}