javascript设计模式 ? 抽象工厂模式原理与应用实例分析

var Dialog = function(){
  this.show = function(){
    console.log(this.name + ' is show -> ' + this.element);
  }
};
 
Dialog.createNotice = function(){
  var _dialog = new Dialog();
  _dialog.element = '<div>notice</div>';
  _dialog.name = 'notice';
  return _dialog;
};
 
Dialog.createToast = function(){
  var _dialog = new Dialog();
  _dialog.element = '<div>toast</div>';
  _dialog.name = 'toast';
  return _dialog;
};
 
Dialog.createWarnin = function(){
  var _dialog = new Dialog();
  _dialog.element = '<div>warnin</div>';
  _dialog.name = 'warnin';
  return _dialog;
};
 
 
var Factory = {};
 
Factory.ConvergeFactory = function(){
  return {
    getNotice: function(){
      return Dialog.createNotice();
    },
    getToast: function(){
      return Dialog.createToast();
    },
 getWarnin: function(){
     return Dialog.createWarnin();
 }
  }
}
 
var converge = Factory.ConvergeFactory();
var notice = converge.getNotice();
var toast = converge.getToast();
var warnin = converge.getWarnin();
notice.show(); //notice is show -> <div>notice</div>
toast.show(); //toast is show -> <div>toast</div>
warnin.show(); //warnin is show -> <div> warnin </div>