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VBScript Procedures

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Try it Yourself - Examples (IE Only)

Sub procedure
The Sub procedure does not return a value.

Function procedure
The Function procedure is used if you want to return a value.

VBScript Procedures

In VBScript, there are two kinds of procedures:

Sub procedure
Function procedure

VBScript Sub Procedures

A Sub procedure:

is a series of statements, enclosed by the Sub and End Sub statements
can perform actions, but does not return a value
can take arguments
without arguments, it must include an empty set of parentheses ()

Sub mysub()
some statements
End Sub

or

Sub mysub(argument1,argument2)
some statements
End Sub

VBScript Function Procedures

A Function procedure:

is a series of statements, enclosed by the Function and End Function statements
can perform actions and can return a value
can take arguments that are passed to it by a calling procedure
without arguments, must include an empty set of parentheses ()
returns a value by assigning a value to its name

Function myfunction()
some statements
myfunction=some value
End Function

or

Function myfunction(argument1,argument2)
some statements
myfunction=some value
End Function

How to Call a Procedure

The line below shows how to call a Function procedure:

carname=findname()

Here you call a Function called "findname", the Function returns a value that will be stored in the variable "carname".

Or, you can do like this:

msgbox "Your car is a " & findname()

Here you also call a Function called "findname", the Function returns a value that will be displayed in the message box.

When you call a Sub procedure you can use the Call statement, like this:

Call MyProc(argument)

Or, you can omit the Call statement, like this:

MyProc argument

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