ByRef vs ByVal in VBScript - The Difference Explained

When it comes to passing parameters in VBScript, understanding the difference between "ByRef" and "ByVal" is crucial.

ByRef

ByRef stands for "By Reference". When a parameter is passed by reference in VBScript using ByRef, any changes made to the parameter within the function will affect the original variable outside of the function. This means that the memory address of the original variable is passed to the function.

ByVal

On the other hand, ByVal stands for "By Value". When a parameter is passed by value in VBScript using ByVal, a copy of the original variable is passed to the function. Any changes made to the parameter within the function will not affect the original variable outside of the function.

It is important to choose between ByRef and ByVal based on the requirements of your program. ByRef is typically used when you want the function to modify the original variable, while ByVal is used when you want to prevent changes to the original variable.

That's the basic difference between ByRef and ByVal in VBScript. Make sure to use them appropriately to optimize your code and prevent unexpected behavior.