Dynamic initialization Javascript object - Angular Example

dynamic_init.js

angular.module('service', [])
.factory('Model', function(){
  
  return function Model(item){
    
    this.name     = "";
    this.surname  = "";
    this.email    = "";
    // more attrs
    
    this.constructor = function() {

       // init (this) class with valid attr
       for (var prop in item) {
        // (this) have this prop?
        if(this.hasOwnProperty(prop)) {
         // yes! Ok... assign value 
         this[prop] = item[prop];
        }
       }
    };
    
    
    // init class
    this.constructor();
  }
});

// in controller have a JSON var named "item"
// and we call the Model dependency
// ...
// $scope.user = new Model(item);
// ...