Re: Re: Use of grep with arrays/hashes

but why do you need ++ since even undef does not remove a key?

Comment on Re: Re: Use of grep with arrays/hashes

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Re: Re: Re: Use of grep with arrays/hashes by merlyn (Sage) on May 24, 2001 at 09:12 UTC
The key doesn't exist until used as an lvalue. So we need to in fact do an assignment, which "++" does just fine. -- Randal L. Schwartz, Perl hacker	[reply]