@triply/tus-js-client/lib.es5/uuid.js

A pure JavaScript client for the tus resumable upload protocol

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = uuid;

/**
 * Generate a UUID v4 based on random numbers. We intentioanlly use the less
 * secure Math.random function here since the more secure crypto.getRandomNumbers
 * is not available on all platforms.
 * This is not a problem for us since we use the UUID only for generating a
 * request ID, so we can correlate server logs to client errors.
 *
 * This function is taken from following site:
 * https://stackoverflow.com/questions/105034/create-guid-uuid-in-javascript
 *
 * @return {string} The generate UUID
 */
function uuid() {
  return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) {
    var r = Math.random() * 16 | 0,
        v = c == 'x' ? r : r & 0x3 | 0x8;
    return v.toString(16);
  });
}