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Re: Passing values in a hash to a subroutine:

by Elihu (Novice)
on Feb 02, 2000 at 03:34 UTC ( #2693=note: print w/replies, xml ) Need Help??

in reply to Passing values in a hash to a subroutine:

I just tried throwing a shift statement before the chomp statement in the first sub replace block. And even though this has the effect of taking the first element of @_ and placing it in $_, the changes don't make it back to the hash.

After reading 'the gory details', I found that this is because @_ is an implicit reference to the actual scalar parameters, and therefore the modifications made upon @_ make it back to my hash. But if I shift the value into $_, any changes I make won't make it back to my hash.

Is this correct? Thanks for the help.

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