Assertion: local variable | /r/HasProperty | initialized to the value of the argument
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Source sentences:
text: In the most common case, call by value, a parameter acts within the subroutine as a new local variable initialized to the value of the argument (a local (isolated) copy of the argument if the argument is a variable), but in other cases, e.g. call by reference, the argument variable supplied by the caller can be affected by actions within the called subroutine (as discussed in evaluation strategy).