JavaScript removeChild 不工作
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JavaScript removeChild not working
提问by Leandro Zhuzhi
I am using this JavaScript code to remove a couple elements from the page, but it's not working. When I inspect the code with Opera Dragonfly it says something like:
我正在使用此 JavaScript 代码从页面中删除几个元素，但它不起作用。当我用 Opera Dragonfly 检查代码时，它说的是：
Uncaught exception: Error: WRONG_ARGUMENTS_ERR
and points to the file and function name.
并指向文件和函数名。
The weird thing is that I use the exact same code in another function on the same page and it works without problem. The code is very small and simple:
奇怪的是，我在同一页面上的另一个函数中使用了完全相同的代码，并且它可以正常工作。代码非常小而简单：
var docBody = document.getElementById("body");
if(document.getElementById("marginDiv")){
docBody.removeChild("marginDiv");
}
Both bodyand marginDivexist on the page. My goal is to make the thumbnails disappear when one clicks the background.
两者body并marginDiv存在在页面上。我的目标是在单击背景时使缩略图消失。
回答by Niet the Dark Absol
You're trying to remove a string. A string is hardly an HTML element. You're also relying on marginDivbeing a direct child of body, which may not be the case.
您正在尝试删除字符串。字符串几乎不是 HTML 元素。您还依赖于marginDiv成为 的直接子代body，但情况可能并非如此。
Instead, try this:
相反，试试这个：
var remove = document.getElementById('marginDiv');
if( remove) remove.parentNode.removeChild(remove);
回答by Amberlamps
Try
尝试
docBody.removeChild(document.getElementById("marginDiv"));
回答by jenswirf
removeChildneeds a reference to a DOM element, not a string. Try this:
removeChild需要对 DOM 元素的引用，而不是字符串。试试这个：
var docBody = document.getElementById("body");
var marginDiv = document.getElementById("marginDiv");
if(marginDiv)){
docBody.removeChild(marginDiv);
}
