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Re: "$_" vs. $_

by Brovnik (Hermit)
on Apr 11, 2007 at 11:44 UTC ( #609349=note: print w/ replies, xml ) Need Help??


in reply to "$_" vs. $_

I think this is what you wanted :
#!/usr/bin/perl use strict; use warnings; sub foo { my %params = @_; print "$_: $params{$_}\n", for keys %params; } my $word = shift @ARGV || "world"; foo ( hello => $word );
Do not use $_ as a temporary variable unless essential.

Declaring and naming the variable catches a lot of issues and solves (for example) the problem you came across as well as improving readability.

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