Function toJson

test/angular/1.7/angular.js:1453–1459

* @ngdoc function * @name angular.toJson * @module ng * @kind function * * @description * Serializes input into a JSON-formatted string. Properties with leading $$ characters will be * stripped since AngularJS uses this notation internally. * * @param {Object|Array|Date|string|number|boolea

(obj, pretty)

 * See https://github.com/angular/angular.js/pull/14221 for more information.
 */
function toJson(obj, pretty) {
  if (isUndefined(obj)) return undefined;
  if (!isNumber(pretty)) {
    pretty = pretty ? 2 : null;
  }
  return JSON.stringify(obj, toJsonReplacer, pretty);
}


/**