Javascript 如何清除div内的跨度
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how to clear a span inside a div
提问by telexper
I want to clear a value of a span inside a div without deleteing other contents only the contents of a span.
我想清除 div 内的跨度值而不删除其他内容，只删除跨度的内容。
ex: body:
例如：身体：
<div id="content">
<span>one</span>
<input type="text" />
<input type="text" />
<span>two</span>
<span>three</span>
<select>
<option selected="selected" value=""></option>
<option value="Monday">Monday</option>
<option value="Tuesday">Tuesday</option>
<option value="Wednesday">Wednesday</option>
<option value="Thursday">Thursday</option>
<option value="Friday">Friday</option>
<option value="Saturday">Saturday</option>
<option value="Sunday">Sunday</option>
</select>
</div>
script:
脚本：
<script type="text/javascript">
function restSel() {
document.getElementById("#content span").innerHTML="";
};
</script>
Clear all the spansor the content of all the spans.
清除所有spans或 的所有内容spans。
回答by digidigo
If you were using JQuery ( which will bring you much joy ), then you could do it like this.
如果您正在使用 JQuery（这会给您带来很多乐趣），那么您可以这样做。
$("span").html("");
回答by Passerby
If you're only using pure JS, you can try this:
如果你只使用纯 JS，你可以试试这个：
document.getElementById("content").getElementsByTagName("span")[0].innerHTML="";
You can replace 0to any valid index to clear certain span.
您可以替换0为任何有效索引以清除某些span.
回答by Daedalus
Alright, I lied I guess. This is more simpler than I thought, thanks to @Passerby;
好吧，我猜我撒了谎。感谢@Passerby，这比我想象的要简单；
for (i = 0; i < document.getElementById('content').getElementsByTagName('span').length; i++) {
document.getElementById('content').getElementsByTagName('span')[i].innerHTML = '';
}
回答by RRikesh
Using jQuery: To target only the spanthat are in your div with id = "content"(in case you have other spansin your document:
使用 jQuery：仅针对id = "content" 的div 中的跨度（以防您的文档中有其他跨度：
$('div#content').find('span').html('');
$('div#content').find('span').html('');
