Generate UUID

GenerateUUID.js

function _generateUUID() {
  var d = new Date().getTime();
  var uuid = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) {
    var r = (d + Math.random() * 16) % 16 | 0;
    d = Math.floor(d / 16);
    return (c == 'x' ? r : (r & 0x7 | 0x8)).toString(16);
  });
  return uuid;
}

function _getRandom(min, max) {
  return Math.floor(Math.random() * (max - min + 1)) + min;
}