can i have a multi class selector in jquery

Can I do something like the below where I can have multiple classes trigger an event?

$('a.red a.blue a.green').click(function(event) 开发者_运维百科
{

});

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Yes, you can use the comma as separator.

$('a.red, a.blue, a.green').click(function(event) {});

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A slightly different approach would be to prefix your classes like a.prefix_red, a.prefix_blue, a.prefix_green and then use a wildcard selector on it like:

$("a[class^=prefix_]")

The advantage is that as long as you prefix all your "trigger" classes, you don't have to edit the jQuery every time you add a new one, not that it would be a major edit anyways, but might come in handy if you decide to minify your script for example.

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$('a.red.blue.green') selects the elements that have all those classes.

$('a.red, a.blue, a.green') selects the elements that have atleast one of those classes.