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获取该DIV的父母ID

[英]Get Parent ID of this DIV

I am looking to find the parent div id (ie "Bakerloo") from this layout when the button is clicked within ".buttonleft0" in jquery / javascript. 当在jquery / javascript中的“ .buttonleft0”内单击按钮时,我正在从此布局中查找父div ID(即“ Bakerloo”)。

<div id='Bakerloo' class='box'>bakerloo<p></p><span class='buttons'>
<span class='buttonleft0'><button onClick='up()'><span class='icon icon10'></span>
</button>
</span><span class='buttonleft'></span><span class='buttonright'></span></span>
<div class='comingup'></div>
<div class='more'></div></div>

I have tried: 我努力了:

$(this).parent('id');

But this just returns 'undefined'. 但这只会返回“未定义”。

$(this).closest('div').attr('id')

我想这就是你想要的

The parent() function returns the jQuery object, so you need to use the attr() for any of it's attributes like so: parent()函数返回jQuery对象,因此您需要对所有attr()使用attr() ,如下所示:

$(this).closest().attr('id');

Edit: On further inspection it appears the button isn't the direct child of the div , and so use of the closest() function would be required. 编辑:在进一步检查中,该按钮不是div的直接子级,因此将需要使用closest()函数。

Straight up Javascript always works for me. 直接使用Javascript总是对我有用。

<div id='Bakerloo' class='box'>
    bakerloo<p></p>
    <span class='buttons'>
        <span class='buttonleft0'>
        <button onClick='alert(this.parentNode.parentNode.id)'>
             <span class='icon icon10'></span>
        </button>
        </span>
        <span class='buttonleft'></span>
        <span class='buttonright'></span>
    </span>
    <div class='comingup'></div>
    <div class='more'></div>
</div>    

尝试这个:

$(this).parent().attr("id");

Try this: 尝试这个:

$(this).closest('div[id]') $(this).closest('div [id]')

Your code itself have few errors so here is the correct one: 您的代码本身几乎没有错误,因此这里是正确的错误:

HTML 的HTML

<div id='Bakerloo' class='box'>bakerloo<p></p><span class='buttons'>
<span class='buttonleft0'><button><span class='icon icon10'>Click here</span>
</button>
</span><span class='buttonleft'></span><span class='buttonright'></span></span>
<div class='comingup'></div>
<div class='more'></div></div>

JQuery jQuery查询

jQuery(document).ready(function($){
    $("button").on('click',function(){
       alert($(this).closest('div').attr('id'));
    });
});

here is the fiddle http://jsfiddle.net/cpeeyush/ydk4e/ 这是小提琴http://jsfiddle.net/cpeeyush/ydk4e/

alert($(this).parent().id);

If you want to be sure to select correct class, try: 如果您要确保选择正确的课程,请尝试:

alert($(this).parent('.div').id);

If you have a deeper hierarchy you can use: 如果您有更深的层次结构,则可以使用:

alert($(this).parents('.div:eq(n)').id);

where n is which parent you want to get n是您想得到的父母

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