What is call by value and call by reference in VBA?

You can pass arguments to a procedure (function or sub) by reference or by value. By default, Excel VBA passes arguments by reference. The code calls the function Triple. It’s the result of the second MsgBox we are interested in.

What is the difference between ByRef and ByVal in VBA?

ByRef = You give your friend your term paper (the original) he marks it up and can return it to you. ByVal = You give him a copy of the term paper and he give you back his changes but you have to put them back in your original yourself.

What does by value mean in Excel VBA?

Excel VBA ByVal Function Argument. ByVal is a statement in VBA. ByVal stands for By Value i.e. when the subprocedure called in from the procedure the value of the variables is reset to the new value from the new procedure called in.

What is difference between call by value and call by reference?

KEY DIFFERENCE In Call by value, a copy of the variable is passed whereas in Call by reference, a variable itself is passed. In Call by value, actual and formal arguments will be created in different memory locations whereas in Call by reference, actual and formal arguments will be created in the same memory location.

What is the difference between ByRef and ByVal when passing data?

When an argument is passed as ByRef argument to a different sub or function, the reference of the actual variable is sent. Any changes made in to the copy of variable, will reflect in original argument. When an argument is passed as ByVal argument to a different sub or function, only the value of the argument is sent.

What is the difference in passing values ByRef or ByVal to a procedure?

When you pass an object ByRef, the reference is passed by reference and the called procedure can change the object to which that reference refers to. When an object is passed ByVal an copy of the reference (address) of the object is passed.

What is meant by pass by value and pass by reference?

By definition, pass by value means you are making a copy in memory of the actual parameter’s value that is passed in, a copy of the contents of the actual parameter. In pass by reference (also called pass by address), a copy of the address of the actual parameter is stored.

What are the advantages of passing arguments by reference?

Advantages of passing by reference:

• References allow a function to change the value of the argument, which is sometimes useful.
• Because a copy of the argument is not made, pass by reference is fast, even when used with large structs or classes.

What do you mean by call by value and call by address?

The main difference between call by value and call by address is that, in call by value, the values of the actual parameters copy to the formal parameters of the function while in call by address, the addresses of the actual parameters copy to the formal parameter of the function.