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JavaScript Undefined vs Object -  Undefined – The undefined means some variable is declared but the value of variable is not defined yet. Object - Object means some variable is declared but the value of variable is not defined that is either function, object OR array. You can easily be understanding in the below example in detail – let emp ; //The declaration of emp is hoisted but the value of emp is  undefined. console . log ( emp ); //The output is undefined console . log ( typeof ( null ));      // object console . log ( typeof ( undefined )); // undefined ü   Stayed Informed –   Object Oriented JavaScript Interview Questions I hope you are enjoying with this post! Please share with you friends!! Thank you!!!

This is basically used to Convert or cast mvc 5 viewbag to arrayin JavaScript  and also compare two strings in jquery.  Table of Contents JavaScript Code sample. MVC 5 Controller Action code sample. The example as given below. JavaScript Code sample < script type ="text/javascript">            $( function () {         var array = @ Html.Raw( Json .Encode(@ViewBag.ACList))                 $( '#ACNumber' ).focusout( function () {             var currentVal = $.trim($( '#ACNumber' ).val()).toLocaleLowerCase();             $.each(array, function (key, val) {                 var existingVa...