forked from mirrors/gecko-dev
47db4ca0b0
MozReview-Commit-ID: DICbgINxnoa --HG-- extra : rebase_source : 065193b99216d68cf7f3ab3a41944f3d2a0836eb
19 lines
584 B
JavaScript
19 lines
584 B
JavaScript
"use strict";
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this.makeUuid = (function() {
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// generates a v4 UUID
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return function makeUuid() { // eslint-disable-line no-unused-vars
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// get sixteen unsigned 8 bit random values
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var randomValues = window
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.crypto
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.getRandomValues(new Uint8Array(36));
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return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
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var i = Array.prototype.slice.call(arguments).slice(-2)[0]; // grab the `offset` parameter
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var r = randomValues[i] % 16|0, v = c === 'x' ? r : (r & 0x3 | 0x8);
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return v.toString(16);
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});
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};
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})();
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null;
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