Re: directly modify hash from subroutine

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Re^2: directly modify hash from subroutine by chromatic (Archbishop) on Sep 05, 2009 at 00:26 UTC
That is (almost always) correct. There's a special case related to subroutine prototypes in Perl 5.10, but you can safely and successfully ignore that for a very, very long time.	[reply]
Re^2: directly modify hash from subroutine by biohisham (Priest) on Sep 05, 2009 at 19:56 UTC
Great, well you know that @_ would hold the arguments passed to a subroutine and you correlated that with array element indexing. Function (subroutines) parameters are passed either directly or by reference, but you have to remember: using & to call a subroutine would disable prototype checking on the arguments if you have specified a subroutine that accepts certain types of arguments. modifying a reference inside a subroutine would modify the original data as is the case with references modification in general. Excellence is an Endeavor of Persistence. Chance Favors a Prepared Mind.	[reply] [d/l]