javascript 使用通配符选择类而不是确切的类名
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selecting classes using wildcard not exact class name
提问by twitter
I have several classes that I want to select .group1-1 .group1-2 .group1-3, each one of these has 50 elements under it.
我有几个类要选择 .group1-1 .group1-2 .group1-3，每个类下面都有 50 个元素。
Is there a way to select all classes that start with group1 (so I end up selecting group1-1, group1-2, group1-3), something like $(".group1"+*)
有没有办法选择所有以 group1 开头的类（所以我最终选择了 group1-1、group1-2、group1-3），比如 $(".group1"+*)
回答by iwasrobbed
You can also use something along the lines of this if you'd like to avoid regex:
如果你想避免使用正则表达式，你也可以使用类似的东西：
$("[class^='group1-']").click(function () {
var groupNumber = $(this).attr('class').split('-')[1];
alert('Yep, you clicked group1-' + groupNumber);
});
Example here: http://jsfiddle.net/iwasrobbed/7bjtb/
回答by John Weldon
This questiondiscusses jquery wildcard / regex selectors. Which basically allow you to use a regular expression to specify matching classes.
这个问题讨论了 jquery 通配符/正则表达式选择器。这基本上允许您使用正则表达式来指定匹配的类。
