What is the difference between ByVal and ByRef in VBScript?

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Answered by suresh

Difference between ByVal and ByRef in VBScript

What is the difference between ByVal and ByRef in VBScript?

In VBScript, ByVal and ByRef are two ways to pass arguments to a subroutine or function.

  • ByVal: When a parameter is passed by value (ByVal), a copy of the variable is passed to the subroutine or function. Any modifications made to the variable within the subroutine or function will not affect the original variable outside of it.
  • ByRef: When a parameter is passed by reference (ByRef), the actual memory location of the variable is passed to the subroutine or function. Any modifications made to the variable within the subroutine or function will affect the original variable outside of it.

It is important to choose between ByVal and ByRef based on the requirement of the program and the desired behavior of the variables being passed.

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