js简单工厂模式用法实例

时间：2021-05-26

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：

<!DOCTYPE html><html><head><title>简单工厂模式</title></head><body><script> //简单工厂模式 var BicycleShop = function(){}; BicycleShop.prototype ={ sellBicycle : function(model){ var bicycle = null; switch(model){ case 'The Speedster': bicycle = new Speedster(); break; case 'The lowride': bicycle = new Lowride(); break; case 'The Comfort Cruise': bicycle = new ComfortCruise(); break; }; Interface.ensureImplements(bicycle,Bicycle); bicycle.assemble(); bicycle.wash(); return bicycle; } }; var AcmeBicycleShop = function(){}; extent(AcmeBicycleShop, BicycleShop); AcmeBicycleShop.prototype.createBicycle = function(model){ var bicycle = null; switch(model){ case 'The speedster': bicycle = new AcmeSpeedster(); break; case 'The Lowrider': bicycle = new AcmeLowrider(); break; case 'The Flatlander': bicycle = new AcmeFlatlander(); break; case 'The Comfort Cruiser': default : bicycle = new AcmeComfortCruiser(); }; Interface.ensureImplements(bicycle,Bicycle); return bicycle; }; //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。

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