Question

I have a html like shown bellow. What im trying to achieve is, after I click on a specific div, to get clean number out of that div(id) as a var in a jQuery. Just a number.

PHP is writing html like this.. ability to delete via label id jquery code is even more welcome (so ie. level does not need to be numerated). :s

<div id="level_1">aaa
  <label id="del_1">Delete this post</label>
</div>

<div id="level_2">bbb
  <label id="del_2">Delete this post</label>
</div>

Something like level_1 (or del_1) to become var num = 1, level_2 (or del_2) to become var num = 2; and so on. You are free to change this html also to obey jQuery if necessary, or just to be more clean. Thx.

Answer 1

This should do the trick.

$('[id^="level_"],[id^="del_"]').click(function() {
   var num = (this.id.match(/\d+$/) || [])[0];
});

jsFiddle.

This selects elements of which their id attribute starts with either level_ or del_.

It then extracts the trailing digits on the id attribute once clicked.

If it could not find any trailing digits, num will be undefined.
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