How to check if JQuery library is loaded

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Use the following code withing your JavaScript tags 

if(jQuery){  
    alert('jQuery loaded');  
}else{
    alert('jQuery not loaded');
}

This method can be used to check if any other JavaScript variable or function exists or is set and thus is not limited to jQuery alone.

Image Credits: Photo by Isis França on Unsplash.

Last Updated On March 21, 2018

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