What is the difference? I always use ByVal, but, I don’t really have a good idea of when should I and when not…
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What is the difference? I always use ByVal, but, I don’t really have a good idea of when should I and when not…
If you pass in a reference, when you modify the value in the method, the variable in the call site will also be modified.
If you pass value, it’s the same as if another variable is created at the method, so even if you modify it, the original variable (at the call site) won’t have its value changed.
So, indeed, you should usually pass variables as value. Only pass as reference if you have an explicit need to do so.