Friday, November 19, 2010

How to use the JavaScript in our Webpage HTML

JavaScript Starting and Ending with Script Tags <Script>

Tags Starting with <script type = text/javascript> and ending with </script>.

Syntax of JavaScript:

<html> 
   <body> 
     <script type="text/javascript"> 
        ... //Place the JavaScript code 
     </script> 
   </body> 
</html>

JavaScript can be placed in various locations in HTML such as Place between the Head Part and body

Example for Placing JavaScript- Head part in the HTML
<html> 
   <head> 
     <script type="text/javascript"> 
        .....
        ..... // HEAD Section JavaScript
     </script> 
   </head>


   <body>
   </body>
</html>
Example for Placing JavaScript- Body  part in the HTML
<html> 
   <head> 
   </head>


   <body>
     <script type="text/javascript"> 
        .....
        ..... //BODY Section JavaScript
     </script> 
   </body>
</html>
Example for Placing JavaScript on Both Places Head, Body  part in the HTML
<html> 
   <head> 
     <script type="text/javascript"> 
        // HEAD Section JavaScript
        document.write("JavaScript placed in HEAD Section")
     </script> 


   </head>


   <body>
     <script type="text/javascript"> 
        // BODY Section JavaScript
        document.write("JavaScript placed in BODY Section")
     </script> 
   </body>
</html>

Example for Print values using Write In JavaScript in the HTML

JavaScript output to a page is document.write.  The document.write command takes the argument as the text required for producing output.
<html> 
   <head> 
     <script type="text/javascript"> 
        // HEAD Section JavaScript
        document.write("JavaScript placed in HEAD Section")
     </script> 


   </head>


   <body>
     <script type="text/javascript"> 
        // BODY Section JavaScript
        document.write("JavaScript placed in BODY Section")
     </script> 
   </body>
</html>

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