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    <p>You can trigger a custom event on the newly added DOM element that can be picked-up by a jQuery event handler:</p> <pre><code>//bind to our custom event for the `.sub-element` elements $('#container').on('custom-update', '.sub-element', function(){ $(this).html('&lt;b&gt;yaay!&lt;/b&gt;'); }); //append a new element to the container, //then select it, based on the knowledge that it is the last child of the container element, //and then trigger our custom event on the element $('#container').append('&lt;div class="sub-element"&gt;No worky!&lt;/div&gt;').children().last().trigger('custom-update'); </code></pre> <p>Here is a demo: <a href="http://jsfiddle.net/ggHh7/4/" rel="noreferrer">http://jsfiddle.net/ggHh7/4/</a></p> <p>This method allows you to do something globally even if you load the dynamic content through different methods.</p> <h1>Update</h1> <p>I'm not sure of the browser support (I'll assume IE8 and older don't support this) but you can use the <code>DOMNodeInserted</code> mutation event to detect when a DOM element is added:</p> <pre><code>$('#container').on('DOMNodeInserted', '.sub-element', function(){ $(this).html('&lt;b&gt;yaay!&lt;/b&gt;'); }) $('#container').append('&lt;div class="sub-element"&gt;No worky!&lt;/div&gt;'); </code></pre> <p>Here is a demo: <a href="http://jsfiddle.net/ggHh7/7/" rel="noreferrer">http://jsfiddle.net/ggHh7/7/</a> ​</p> <h1>UPDATE</h1> <p>There is a new API for this as <code>DOMNodeInserted</code> is depreciated at this time. I haven't looked into it but it's called <code>MutationOvserver</code>: <a href="https://developer.mozilla.org/en-US/docs/Web/API/MutationObserver" rel="noreferrer">https://developer.mozilla.org/en-US/docs/Web/API/MutationObserver</a></p>
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    1. POjQuery on load of dynamic element
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    1. COInteresting, +1, and all... so you are saying that there is no way I can be notified when some third-party plugIn adds an element to some container. If I'm not the one appending it, I'm screwed?
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      1. USKlaus Byskov Pedersen
    2. COYou can setup an interval that checks for new DOM elements every so often. Otherwise there are mutation events, `DOMNodeInserted` is probably what you want but the browser support may not be what you need: https://developer.mozilla.org/en/DOM_Client_Object_Cross-Reference/DOM_Events (Look at the `Mutation and mutation name event types` section). See my **update** for an example of using `DOMNodeInserted`.
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    3. COYou would need to use a method such as Long Polling to monitor the element for changes in length, if the length changes, then grab the difference in length. That will give you whatever 'object' resides there. It's unconventional, but it will work.
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