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#!/usr/bin/perl -w use strict; use Benchmark; my $val=" Smart Way "; timethese(1000000, { regex1 => sub { my $tmp = $val; $tmp =~ s/^\s*(.*?)\s*$/$1/g; }, regex2 => sub { my $tmp = $val; $val = join (" ",split " ",$val); }, regex3 => sub { my $tmp = $val; $tmp =~ s/^\s+//; $tmp =~ s/\s+$//; } });

__OUTPUT__
Benchmark: timing 1000000 iterations of regex1, regex2, regex3...
regex1: 6 wallclock secs ( 5.25 usr + 0.00 sys = 5.25 CPU) @ 190512.48/s (n=1000000)
regex2: 2 wallclock secs ( 1.83 usr + 0.00 sys = 1.83 CPU) @ 547045.95/s (n=1000000)
regex3: 2 wallclock secs ( 1.02 usr + 0.00 sys = 1.02 CPU) @ 984251.97/s (n=1000000)

In reply to Re: Re: Re: remove both leading and trailing spaces by softworkz
in thread remove both leading and trailing spaces by s_mile

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