Check if jQuery UI is loaded ?

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Question: How to check if jQuery UI is loaded on web page ?

First make sure you put any code that calls it in $(document).ready(). At that point, everything should be loaded on the page.

One better way is to check by writing:


Or by getting the version:


OR you can also write following code:

if (typeof jQuery.ui !== 'undefined')


console.log("not loaded");

If the above code writes “loaded” on console window, that means jQueryUI is loaded.

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