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Re: Re: (jeffa) 3Re: seeking different ways to slice a 2-d array

by Anonymous Monk
on May 14, 2002 at 20:46 UTC ( #166574=note: print w/replies, xml ) Need Help??


in reply to Re: (jeffa) 3Re: seeking different ways to slice a 2-d array
in thread seeking different ways to slice a 2-d array

I don't like to declare the same variable more than once.
sub read_cache { our %CACHE; ... } sub write_cache { our %CACHF; ... }
Oops. It's so easy to slip... But on the other hand, you have to misspell the variable throughout all of &write_cache, which usually isn't too probable. But for short routines--like get/set routines--it's a not too far-fetched scenario.

For those times I prefer to use
{ our %CACHE; sub read_cache { ... } sub write_cache { ... } }
The only reason I want more education is that I learned about lexical and package variables as totally separate!!! and now they ain't... Which is cool, but also pretty bizarre.

I agree, it does indeed look like globals has become... something else. But you can relax--they haven't. They're still totally separate. What our() does is to declare a lexical alias for the global variable.

Cheers,
-Anomo

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