VBScript Procedures
Examples
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
We have two kinds of procedures: The Sub procedure and the Function procedure.
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 that are passed to it by a calling
procedure
- without arguments, must include an empty set of parentheses ()
Sub mysub()
some statements
End Sub
or
Sub mysub(argument1,argument2)
some statements
End Sub
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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
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Call a Sub or Function Procedure
When you call a Function in your code, you do like this:
Here you call a Function called "findname", the Function returns a
value that will be stored in the variable "name".
Or, you can do like this:
msgbox "Your name is " & findname()
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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:
Or, you can omit the Call statement, like this:
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