Friday, 15 June 2018

SCRIPTING Language O level web design note





Scripting Language
  1. A scripting or script language is a programming language that supports scripts: 
  2.  programs written for a special run-time environment that  automate  the  execution   of tasks that could alternatively be executed one-by-one by a human operator.
  3.  Scripting languages are often interpreted rather than compiled. Scripts executed     automatically in Web Browsers.
  4.  Different Scripting Languages are
  • Javascript
  • Vbscript

   

VBScript
JavaScript
VBScript (Visual Basic Script) is the Active Scripting Language , lightweight & designed for fast interpreter .
JavaScript is the Client side scripting language, prototype based and mostly used with web browsers.
 Microsoft Developed VBScript.
 Brendan Eich founded JavaScript and NetScape Developed it.
VBScript works at both client side and server side.
JavaScript works only at client side.
VBScript is not case sensitive language.
JavaScipt is case sensitive language.
It runs only on Internet Explorer (IE) browser.
It runs on the all browser.
VBScript is used for server side validation.
JavaScript is used for client side validation.
VBScript supports functions & subroutines and uses functionand end function for starting and ending function.
JavaScript supports only functions and uses curly bracesfor starting and ending function. 
VBScript Syntax is derived from BASIC language .
JavaScript syntax is derived from C language.
VBScript is not the default scripting language , but can be made by specifying in scripting language.
JavaScript is default scripting language almost in all browsers.
File extension in VBScript is .vba or .vbs
File Extension in JavaScript is .js
VBScript Uses ‘ for comment.
JavaScript uses // or /* … */ for comments.


                                                                                                                                         











                       



First.html -  Java Script for Multiplication of Two Numbers using Function
<html>
<body>
<p id="result"></p>

<script>
var x = Multiply(4, 3);
document.getElementById("result").innerHTML = x;

function Multiply(a, b)
{
return a * b;
}
</script>
</body>
</html>
                                                           

VBScript Programm to Add Two Numbers

<html>
<head></head>
<body>
<script language="vbscript" type="text/vbscript">
Dim Sum
Number1 = InputBox ("Please enter the number 1")
Number2 = InputBox ("Please enter the number 2")
Sum = Number1 + Number2
Msgbox Sum
</script>
</body>
</html>

VBScript to Display Welcome Message

<html>
<head></head>
<body>
<script language="vbscript" type="text/vbscript">
Msgbox “Welcome Message”
</script>
</body>
</html>