javascript - 如何迭代jquery选择器的结果

Question

我想迭代查询选择器的结果。

HTML代码

<nav id="navigation">
        <a href="#" tabindex="1" class="active_nav">nav1</a>
        <a href="#" tabindex="2">nav2</a>
        <a href="#"tabindex="3">nav3</a>
</nav>

当我使用 javascript 时

alert($("#navigation >a")[0]);

结果是标签a的href属性我不知道为什么。

Answer 1

使用$.each

$("#navigation > a").each(function() {

     console.log(this.href)
});

---

$('#navigation > a')[0]
      ^              ^---- Selects the 1st dom object from the jQuery object
      |                    that is nothing but the index of the element among 
      |                    the list of elements
      |-------  Gives you children of nav(3 anchor tags in this case)  which is a
                jQuery object that contains the list of matched elements