Question

为什么console.log(product.bindEvent())是undefind 怎么写才能调这里面的事件方法呢？

function Product(){
this.img='';
this.discount='';
this.description='';
this.oldPrice='';
this.groupPrice='';
this.date='';

}

Product.prototype={

bindDom:function(){

var str='';
str+='<dl>';
str+='<dt><a><img src="'+this.img+'" width="384" height="225" /></a></dt>';
str+='<dd>';
str+='<span><a><em>'+this.discount+'</em>'+this.description+'</a></span>';
str+='</dd>';
str+=' <dd class="price">';
str+='<em>'+this.oldPrice+'</em>';
str+=' <del>'+this.groupPrice+'</del>';
str+='<i>'+this.date+'</i>';
str+=' </dd>';
str+='</dl>';
return str;

},
bindEvent:function(){

$('.conBottomT>dl').mouseenter(function(){

$(this).css('borderColor','red');

})

}

};

var products=[

{img:'img/boutque08_r2_c2.jpg',discount:'5.5',description:'天香豆蔻',oldPrice:'500',groupPrice:'500',date:'2015/12/3'},
{img:'img/boutque08_r2_c2.jpg',discount:'5.5',description:'天香豆蔻',oldPrice:'500',groupPrice:'400',date:'2015/12/3'},
{img:'img/boutque08_r2_c2.jpg',discount:'5.5',description:'天香豆蔻',oldPrice:'500',groupPrice:'400',date:'2015/12/3'},
{img:'img/boutque08_r2_c2.jpg',discount:'5.5',description:'天香豆蔻',oldPrice:'500',groupPrice:'400',date:'2015/12/3'},
{img:'img/boutque08_r2_c2.jpg',discount:'5.5',description:'天香豆蔻',oldPrice:'500',groupPrice:'400',date:'2015/12/3'},
{img:'img/boutque08_r2_c2.jpg',discount:'5.5',description:'天豆蔻',oldPrice:'500',groupPrice:'400',date:'2015/12/3'},
{img:'img/boutque08_r2_c2.jpg',discount:'5.5',description:'天豆蔻',oldPrice:'500',groupPrice:'400',date:'2015/12/3'}

];

var str='';
for(var i=0;i<products.length;i++){

var product=new Product();
product.img=products[i].img;
product.discount=products[i].discount;
product.description=products[i].description;
product.oldPrice=products[i].oldPrice;
product.groupPrice=products[i].groupPrice;
product.date=products[i].date;

str+=product.bindDom();

}

$('#container').html(str);

console.log(product.bindEvent());

Answer 1

product.bindEvent()
你这个应该调用成功了，但是你
bindEvent:function(){

$('.conBottomT>dl').mouseenter(function(){

$(this).css('borderColor','red');

})

}
没写返回值啊，所以console.log(product.bindEvent())返回的是undefind
你试试bindEvent里加个return

追问

是的 加了个 return $('.conBottomT>dl').mouseenter(function(){

$(this).css('borderColor','red');

}) 就可以了 感谢回答啊