jQuery：是否有可能从元素中选择只有一个类的元素，最多可能有3个类？ [英] jQuery: Is it possible to select elements with only one class from among elements with, potentially, up to 3 classes?

问题描述

例如，假设我有以下内容：

For example, say I have the following:

<span class="a b c">Has class a, b, and c</span>  
<span class="a">Has class a</span>  
<span class="b c">Has class b and c</span> 
<span class="a c">Has class a and c</span> 
<span class="a c">Has class a and c</span> 
<span class="a">Has class a</span>

现在，假设我要选择所有仅类a的元素。$
意味着只选择第二个和最后一个 span s。

有一个简单的方法吗？

Now, suppose I want to select all elements that have only class a.
Meaning only the second and last spans would get selected.
Is there a simple way to do this?

推荐答案

$('.a').not('.b, .c')

这将选择类 a 没有 b 或 c 。但是，他们仍然可以拥有 d ， e 等等。如果你真的只想要没有元素，请使用Phil的答案 a 以外的类。

This will select all elements with class a that do not have b or c. However, they could still have class d, e, etc. Use Phil's answer if you really only want elements with no class other than a.

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