Function Procedure Example

VBScript Tutorials - Herong's Tutorial Examples - Version 5.20, by Dr. Herong Yang

VBScript Tutorials - Herong's Tutorial Examples

∟Function Procedure Example

This section provides a tutorial example on how to define and invoke a function procedure that calculates the temperature value in Celsius from Fahrenheit.

To help you understand the concept of function procedure, I wrote the following the example, function_f2c.html:

<html>
<body>
<!-- function_f2c.html
 - Copyright (c) 2015, HerongYang.com, All Rights Reserved.
-->
<pre>
<script language="vbscript">
   d = F2C(70.0)
   document.writeln("Received Celsius = " & d)
   d = F2C(212.0)
   document.writeln("Received Celsius = " & d)

Function F2C(dFahrenheit)
   document.writeln("")
   document.writeln("Converting Fahrenheit = " & dFahrenheit)
   dCelsius = (dFahrenheit - 32.0 ) / 1.8
   document.writeln("Returning Celsius = " & dCelsius)
   F2C = dCelsius
End Function
</script>
</pre>
</body>
</html>

Here is the output:


Converting Fahrenheit = 70
Returning Celsius = 21.1111111111111
Received Celsius = 21.1111111111111

Converting Fahrenheit = 212
Returning Celsius = 100
Received Celsius = 100

Easy to understand. Right?

Table of Contents

About This Book

Introduction of VBScript - Visual Basic Scripting Edition

Variant Data Type, Subtypes, and Literals

Arithmetic Operations

Numeric Comparison Operations and Logical Operations

String Operations - Concatenation and Comparison

Variable Declaration and Assignment Statement

Expression and Order of Operation Precedence

Statement Syntax and Statement Types

Array Data Type and Related Statements