Gitako/packages/pjax/lib/util/clone.js

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
}