Beefy Boxes and Bandwidth Generously Provided by pair Networks
Keep It Simple, Stupid

Re: scanning hash

by ysth (Canon)
on Aug 01, 2004 at 11:46 UTC ( #379056=note: print w/ replies, xml ) Need Help??

in reply to scanning hash

Here's a scalable, undef-friendly solution, just for kicks:

my $multiple_values; my ($k,$v); use Data::Dumper; $Data::Dumper::Useqq = 1; while (defined($k = each %hash)) { if ($v) { ++$multiple_values, last if Dumper($hash{$k}) ne $v; } else { $v = Dumper($hash{$k}) } }
It does distinguish between strings and numbers that eq would say were the same, though.

Comment on Re: scanning hash
Download Code
Replies are listed 'Best First'.
Re^2: scanning hash
by Aristotle (Chancellor) on Aug 01, 2004 at 15:05 UTC

    That is nice in the spirit of TMTOWTDI, but it's overengineered and inefficient. defined is a perfectly sufficient vehicle to write code that handles undef vs empty string correctly.

    Makeshifts last the longest.

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://379056]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others wandering the Monastery: (6)
As of 2015-11-28 09:25 GMT
Find Nodes?
    Voting Booth?

    What would be the most significant thing to happen if a rope (or wire) tied the Earth and the Moon together?

    Results (740 votes), past polls