[英]How to get an element inside nested divs by class name?
A webpage with HTML looks like this: 带有HTML的网页如下所示:
<div id="Parent-div" > </div>
<div class="first-child-div"> </div>
<div class=" second-child-div">
<div class="first-grand-child"> </div>
<div class="second-grand-child"> </div>
<div class="Third-grand-child">
<div class="Grand-grand child">
<button class="Confirm-button">Confirm!</button>
</div>
</div>
</div>
I've Tried This code using greasemonkey to remove a button from the div with the class named "Grand-grand child" 我试过这个代码使用greasemonkey从div中删除一个名为“Grand-grand child”的按钮
This is what I did: 这就是我做的:
var targetDiv = document.querySelector("#<Parent-div>. Grand-grand.child");
targetDiv.innerHTML = "Hello world!";
The Button wasn't replaced by the Hello world! 按钮没有被Hello世界取代! text, What did I do wrong?
文字,我做错了什么?
document.querySelector('.Grand.grand.child');
演示: http : //jsfiddle.net/yGv3v/
You should change <div class=" Grand grand child">
to <div class="Grand-grand-child">
and then you can select it with $('.Grand-grand-child')
. 你应该将
<div class=" Grand grand child">
更改为<div class="Grand-grand-child">
然后你可以用$('.Grand-grand-child')
选择它。
Edit 编辑
If you want to use pure JavaScript, then you can select the node element via 如果要使用纯JavaScript,则可以选择节点元素via
var grandChildChildNode = document.getElementsByClassName('Third')[0].children[0]
This should work in sufficiently modern browsers. 这应该适用于足够现代的浏览器。
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