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Re: length or array in a hash

by 2teez (Priest)
on Nov 09, 2012 at 19:54 UTC ( #1003203=note: print w/replies, xml ) Need Help??


in reply to length or array in a hash

Hi, ongaku,
You can do like so:

%hash = ( 'one' => [1], 'two' => [2,2], 'three' => [3,3,3], ); foreach my $array (keys %hash){ print $array," :", scalar @{$hash{$array}},$/; }
Output
three :3 one :1 two :2
You might want to check the function scalar

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[Discipulus]: if i had to go to psycho i need to ask why i always end with over complex datastructure: now i have an HoHoAoH in my object
[Discipulus]: i will need to handle by reference later on
[Eily]: kinda sounds like father Christmas is late
[hippo]: (asking because I'm sure you said before about learning English) Did you know there are 2 different words for smaller quantities in English? They are "less" and "fewer". Fewer applies to a number of discrete things like days.
Eily notes also
[hippo]: So if you don't drink as much milk and not as often you are said to drink less milk on fewer days. Confusing, eh?
[Eily]: same as many/much, few/little

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