jQuery live() works with jQuery 1.8.3 & below but not with 1.9.1 or 2.0


I've been using <a href="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js" rel="nofollow">http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js</a> for a while now and everything has been fine, but 1.8.3 got quite old so I've decided to move to the latest jQuery. And suddenly a few things stopped working: <a href="http://razorjack.net/quicksand/" rel="nofollow">Quicksand plugin</a> and part of my own jQuery code (that shows additional data under every slide of a slider).

Can you help me figuring out what's wrong? Or maybe it's not worth moving to jQuery versions above 1.8.3? Check the Jsfiddle.


<a href="#" class="show" data-show="first">SHOW</a> <a href="#" class="show" data-show="second">SHOW</a> <div id="first">First paragraph.</div> <div id="second">Second paragraph</div>


jQuery(".show").live("click", function (e) { var slide = '#' + jQuery(this).data('show'); jQuery(slide).slideToggle(); e.preventDefault(); });


div { display: none; }

Here's a working jsfiddle: <a href="http://jsfiddle.net/ABrna/" rel="nofollow">http://jsfiddle.net/ABrna/</a>

Try changing jQuery to 1.9.1 or 2.0 and hit Run. Script stops working. Why?


The .live() method has been deprecated since jQuery 1.7 and has been removed in 1.9.

<a href="http://jquery.com/upgrade-guide/1.9/#live-removed" rel="nofollow">http://jquery.com/upgrade-guide/1.9/#live-removed</a>



As of jQuery 1.7, the .live() method is deprecated. Use .on() to attach event handlers. Users of older versions of jQuery should use .delegate() in preference to .live().


<a href="http://api.jquery.com/live/" rel="nofollow">Doc</a>.


Equivalent to .live() using delegation with .on() is:

jQuery(document).on("click",".show", function (e) { var slide = '#' + jQuery(this).data('show'); jQuery(slide).slideToggle(); e.preventDefault(); });

But you shouldn't set delegation at document level but use instead closest static container.


jQuery 2.0 deprecate the live function. You can find more information in <a href="http://blog.jquery.com/2013/04/18/jquery-2-0-released/" rel="nofollow">http://blog.jquery.com/2013/04/18/jquery-2-0-released/</a>


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