How many ways can an argument be passed to a subroutine?
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Answer Posted / janet
An argument can be passed in two ways. They are passing by
value and passing by reference.
Passing by value: This method copies the value of an
argument in to the formal parameters of the subroutine.
Passing by reference: In this method, a reference to an
argument(not the value of the argument) is passed to the
parameter.
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