閉包中使用this

1.var name="the window";
var object={
    name:"my object",
    getNameFunc:function(){
       return function(){
           return this.name;
       };
   }
}
alert(object.getNameFunc()())
//無括號是返回function(){
return function(){
return this.name;
//一個括號返回function(){
return this.name;
//兩個括號返回the window

2.var name="the window";
var object={
    name:"my object",
    getNameFunc:function(){

       var that=this;
       return function(){
           return that.name;
       };
   }
}
alert(object.getNameFunc()())

3.var name="the window";
var object={
name:"my object",


getNameFunc:function(){

return this;

};
}

}
alert(object.getNameFunc())

//SyntaxError: Unexpected token ;報錯

//字面量裏面多了一個分號，去掉後返回object object