getting the number of fields in hash per key

Gerryjun has asked for the wisdom of the Perl Monks concerning the following question:

Getting the number of fields in hash per key Help! I know how to get the list length "$total = $#h+1;"
on a @List, but now i would want to do the same in hash per given key.

how can i get or know the number of entries a hash has? exp.
$h{'key'}

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Re: getting the number of fields in hash per key by runrig (Abbot) on Nov 10, 2001 at 01:47 UTC
One of these should do what you want: `# index of last element print $#{$h{a}},"\n"; # number of elements my $num = @{$h{a}}; print "$num\n";` [download]	[reply] [d/l]
Re: getting the number of fields in hash per key by mkmcconn (Chaplain) on Nov 10, 2001 at 03:01 UTC
It might be bad form (I'd like other opinions), but I habitually do this: `print 0+(keys %h);` [download] mkmcconn apologies - read it too quickly. Same idea then, `0+@{$h{'key'}}` [download] sorry again sheesh	[reply] [d/l] [select]
Re: getting the number of fields in hash per key by hopes (Friar) on Nov 10, 2001 at 04:39 UTC
Also using scalar `scalar keys %{$hash{key}}` Greets Hopes	[reply] [d/l]