It possible to attach a handler for when an item is loaded to the DOM in jQuery?

I know I can do this:

$("#my_div").live("click", function() {
  alert("My Div was clicked");开发者_运维百科
}

But how can I define a handler to call when a matching element is loaded to the DOM (now or in future)?

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Have a look at Live Query. It allow you to fire events when matching elements get added to the DOM.

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The only way I can think of to achieve this, without using a plug-in, is:

$('selecter').bind('DOMNodeInserted',
    function(){
        if ($('.newElementClassName').length > countOfNewDivs) {
            // new element matching new element's class-name has been added
            countOfNewDivs++;
            alert(countOfNewDivs);
        }
    });

JS Fiddle demo.

Note:

This has only been tested on Chromium 11, and Firefox 4, on Ubuntu 11.04; I don't think that this approach is likely to work in IE, but I'm unable to test.

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One way of doing this is assigning all common divs the same class and using:

$(".myDIVClass").live("click", function() {
  alert("My Div was clicked");
}