Unable to check if jQuery var is undefined -

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Here is my code that I tried: 

  var moduleloaded = jQuery.data ( "#module", "load"); If (module loaded type === undefined) {moduleLoaded = true; JQuery data ("#module", "load", module loaded); Console.log (jQuery.data ("# module", "load", module loaded)); }

If the statement does not get hit. I tried the if (module loaded!) and then I got the error 'can not read' the data of the "undefined 'property" if (module loaded == '') will also not work This code gets hit twice, so I should be correct on the second loop.

The operator returns a string, you can get it as 'undefined' string The value should be compared.


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