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VBScript Procedures

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Examples

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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