Depends. If the variable contains a short string, then the slow down will be negligible. If it contains a number and the subroutine needs to do some more computations, then you've just forced perl to convert the number to a string and back. If nothing more, it's wasteful.

Then there is yet another case. What if the variable contains a huge string? You've just made yet another copy ...

Jenda
Enoch was right!
Enjoy the last years of Rome.

In reply to Re^4: Executing a string as a Perl command by Jenda
in thread Executing a string as a Perl command by tel2

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