jquery - .Match() A or B or C

Question

I have a list of spans with a variety of classes. I want to check if a given span has the same class as another element.

if ( $(this).attr('class') === getClass.match('Rock, Paper, Scissors') ) {
    //do stuff
}

.match doesn't work with a comma separated list. I was wondering how I would do this then.

score 6 · Accepted Answer

6

Why not just

$(this).is('.Rock, .Paper, .Scissors')

于 2013-06-23T01:23:08.893 回答

score 1 · Accepted Answer

Using a pipe separated regex should work.

/A|B|C/

Here is the documentation for the test method which will return true/false directly.

 var str="Hello world!";
 //look for "Hello" or "world"
 var patt=/Hello|world/g;
 var result=patt.test(str);

score 0 · Accepted Answer

我建议查看该filter方法 ( http://api.jquery.com/filter/ )，因为您的元素可能有多个类，在这种情况下，您发布的代码可能不会产生预期的结果。您可以filter按如下方式使用该功能：

$(this).filter('.Rock, .Paper, .Scissors')

所以你可以像下面这样使用它：

$.each($(element).filter('.Rock, .Paper, .Scissors'), function(index, value) {
    // do stuff
});

3 回答 3