js简单工厂模式用法实例
本文实例讲述了js简单工厂模式用法。分享给大家供大家参考。具体实现方法如下：
<!DOCTYPEhtml>
<html>
<head>
<title>简单工厂模式</title>
</head>
<body>
<script>
//简单工厂模式
varBicycleShop=function(){};
BicycleShop.prototype={
sellBicycle:function(model){
varbicycle=null;
switch(model){
case'TheSpeedster':
bicycle=newSpeedster();
break;
case'Thelowride':
bicycle=newLowride();
break;
case'TheComfortCruise':
bicycle=newComfortCruise();
break;
};
Interface.ensureImplements(bicycle,Bicycle);
bicycle.assemble();
bicycle.wash();
returnbicycle;
}
};
varAcmeBicycleShop=function(){};
extent(AcmeBicycleShop,BicycleShop);
AcmeBicycleShop.prototype.createBicycle=function(model){
varbicycle=null;
switch(model){
case'Thespeedster':
bicycle=newAcmeSpeedster();
break;
case'TheLowrider':
bicycle=newAcmeLowrider();
break;
case'TheFlatlander':
bicycle=newAcmeFlatlander();
break;
case'TheComfortCruiser':
default:
bicycle=newAcmeComfortCruiser();
};
Interface.ensureImplements(bicycle,Bicycle);
returnbicycle;
};
//工厂模式适用与一个fn根据参数不同，创建不同的对象
</script>
</body>
</html>
希望本文所述对大家的javascript程序设计有所帮助。