Function createMap

test/angular/1.6/angular.js:2187–2189

* Creates a new object without a prototype. This object is useful for lookup without having to * guard against prototypically inherited properties via hasOwnProperty. * * Related micro-benchmarks: * - http://jsperf.com/object-create2 * - http://jsperf.com/proto-map-lookup/2 * - http://jsperf.c

()

 * @returns {Object}
 */
function createMap() {
  return Object.create(null);
}

function stringify(value) {
  if (value == null) { // null || undefined