To test to ensure that the values and the types are the same, you need to use the identity operator ===. - Javascript Language Basics

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Description

To test to ensure that the values and the types are the same, you need to use the identity operator ===.

Demo Code

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<!DOCTYPE HTML>
<html>
    <head>
        <title>Example</title>
    </head>
    <body>
        <script type="text/javascript">

           var firstVal = 5;/*from w  w  w .  ja  v  a 2 s  . c  o  m*/
           var secondVal = "5";

            if (firstVal === secondVal) {
                document.writeln("They are the same");
            } else {
                document.writeln("They are NOT the same");
            }
        </script>
    </body>
</html>

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