muba


Your skill will accomplish what the force of many cannot
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muba

by muba (Curate)

on Mar 03, 2004 at 09:25 UTC ( #333489=user: print w/ replies, xml )

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User since:	Mar 03, 2004 at 09:25 UTC
Last here:	Apr 11, 2013 at 11:53 UTC (6 weeks ago)
Experience:	3879
Level:	Curate (13)
Writeups:	415
Location:	The Netherlands
User's localtime:	May 24, 2013 at 02:21 CEST
Scratchpad:	View

My nodes that made it to the front page

Date	Category	Title
Jan 2013	Meditations	Hungarian notation, kind of
Sep 2010	SoPW	A matter of style: how to perform a simple action based on a simple condition?
Feb 2007	SoPW	UTF-8 text files with Byte Order Mark
Jun 2006	SoPW	How is perl able to handle the null byte?
Sep 2004	Meditations	A "but" operator.
Sep 2004	SoPW	Extract subroutines from a Perl s‎crip‎t. OR: "Only perl can parse Perl." But can it help me to do so?
Aug 2004 and onward	Meditations / Regex tutorials	Regexp do's and don'ts
Jul 2004	Meditations	HTML - separating design and logic
May 2004	SoPW	Change the parent of an instance
Mar 2004	SoPW	So, now what are taints?
Mar 2004	SoPW	See if a certain package has a certain sub, without executing that sub

Ways to find out if $scalar is numeric

tye and me having a little fun in the chatterbox.

[muba]: my $is_string = ($scalar ^ $scalar) eq ("$scalar" ^ "$scalar");
[tye]: my $isNumber = $scalar ^ '00' eq $scalar;
[tye]: my $isNumber = do { my $warn= 0; local $SIG{__WARN__}= sub { $warn= 1 }; use warnings; $scalar^=''; $warn };
tye]: my $isNumber = ( $scalar ^ "$scalar" ) =~ /\d/;

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