javascript 获取项目数 jQuery.each()
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Get count of items jQuery.each()
提问by harsimranb
I am parsing XML using jQuery. I want to get the count of all the sub nodes with the given tag name.
我正在使用 jQuery 解析 XML。我想获取具有给定标记名称的所有子节点的计数。
For example:
例如：
<People>
<person name="hello'></person>
<person name="hello'></person>
<person name="hello'></person>
<person name="hello'></person>
<person name="hello'></person>
</people>
I use the following jQuery Code:
我使用以下 jQuery 代码：
$(xml).find("person").each(function(){});
Of course the above code works, but I just want to get the count, I do not want to loop. The reason is this: The above sample is too easy, my XML file and javascript code is a bit complex, so there is a lot of logic to figure out the xml file, and I don't want to spend code writing all that.
当然上面的代码有效，但我只想得到计数，我不想循环。原因是这样的：上面的例子太简单了，我的xml文件和javascript代码有点复杂，所以搞清楚xml文件的逻辑很多，不想花代码写那么多。
Many Thanks!
非常感谢！
回答by JaredPar
If you want to get the count then use the lengthproperty:
如果要获取计数，请使用以下length属性：
$(xml).find("person").length;
- API Reference: http://api.jquery.com/length/
- API参考：http: //api.jquery.com/length/
回答by ZloyPotroh
Or also try size():
或者也尝试size()：
$(xml).find("person").size();
