Javascript Variable Initilization

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In this section, you will learn about javascript variable initilization. Javascript provides you to do programming at the client side.

Systax for declearing variable :

var a;

Initilization javascript variable:

var a = 10;

Following example you will see the variable initialization and print on running document or window:

Variable initilization Code :


        <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 

        Transitional//EN"

        "http://www.w3.org/TR/html4/loose.dtd">

        <html>

        <head>

        <script language="javascript" type="text/javascript">

          var a = 10;

          document.write(a);

        </script>

        <meta http-equiv="Content-Type" content="text/html; 

        charset=iso-8859-1">

        <title>Javascript variable</title>

        </head>

        

        <body>

        </body>

        </html>

If you want to try it online then you click on bellow link and test it.

Try online