Function merge

06.Router/basic/js/vue-resource.js:355–364

(target)

  var assign = Object.assign || _assign;

  function merge(target) {

      var args = array.slice.call(arguments, 1);

      args.forEach(function (source) {
          _merge(target, source, true);
      });

      return target;
  }

  function defaults(target) {