Re: Re: Removing a certain number of hash keys

That's the sort of thing I was looking for. Now to complicate matters a bit, I oversimplified my example somewhat. I actually have a hash that looks more like this:

my %hash = ( 100 => 1, 100.1 => 1, 103 => 1, 103.1 => 1, 103.2 => 1, 1
+05 => 1 );
[download]

More to the point, the keys will always be nice and sortable, but they won't necessarily be integers and they won't always be consecutive. Is there a way to do some sort of indexing into a hash slice?

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(tye)Re: Removing a certain number of hash keys by tye (Sage) on Dec 12, 2000 at 02:48 UTC
Not nearly as efficient as `delete @hash{101..105}`, but the following looks nice: `delete @hash{ grep {/^101$/../^105$/} sort keys %hash };` [download] Unless you keep a sorted list of keys separately, I don't think you can do much better than that. Updated slightly. - tye (but my friends call me "Tye")	[reply] [d/l] [select]
Re: Re: Re: Removing a certain number of hash keys by Hot Pastrami (Monk) on Dec 12, 2000 at 03:00 UTC
This should still work, provided you still want to delete all in a range: `map { delete $hash{$_} if ($_ > 101 && $_ < 103) } keys %hash;` [download] Alan "Hot Pastrami" Bellows	[reply] [d/l]