jQuery验证选择器ID更改

Question

$('select').change(function() {
   //important stuff
});

Before doing important stuff I want to verify the selector in question by its ID. All of the IDs I want to affect end with _stat . How would you do this with a regular expression (or something else) in JQuery?

$('select').change(function() {
   if ($("select[id*='_stat']")) {  //<~ this aint work
   //important stuff
   }
});

Answer 1

You can do this with if ($(this).is("select[id$='_stat']")) , but it would surely be better to attach the event handler to these elements only in the first place -- then you wouldn't have to check at all:

$("select[id$='_stat']").change(function() {
   //important stuff
});

Answer 2

You're looking for this:

if($(this).is('[id$="_stat"]')) {
    // important stuff
}

Although if you only want the change handler to run on those select elements with ids that end in _stat , you should check out Jon's answer.

Answer 3

You could even only attach to selects with id ending in _stat:

$('select[id$="_stat"]').change(function() {
   //important stuff only for selects id ending in _stat
});