pjax/lib/util/clone.js

Easily enable fast AJAX navigation on any website (using pushState + XHR)

module.exports = function(obj) {
  /* istanbul ignore if */
  if (null === obj || "object" !== typeof obj) {
    return obj;
  }
  var copy = obj.constructor();
  for (var attr in obj) {
    if (obj.hasOwnProperty(attr)) {
      copy[attr] = obj[attr];
    }
  }
  return copy;
};