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Posted on 2001-08-08
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Last Modified: 2010-03-05
how to replace all comma's in a variable with an other character ?

tnx in advance
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Question by:oostwijk
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by:ahoffmann
ID: 6365910
$var=~s/,/x/g;
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interiot earned 20 total points
ID: 6366633
$var =~ tr/,/x/;


Using tr/// is a little over 4 times as fast as using s///;
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Expert Comment

by:interiot
ID: 6366634
You can see that by running the following program:


#!/usr/bin/env perl
$^W=1;

use Benchmark;

my $str = "asdfklj,123ja09d,21349a,asd,f,23,,4,,,123a09sdfjl2345,asdj034,";

timethese(500000,
{       'S' => sub {
                my $s = $str;
                $s =~ s/,/x/g;
        },
        'TR' => sub {
                my $s = $str;
                $s =~ tr/,/x/;
        }
});
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by:ahoffmann
ID: 6367037
nice Benchmark ;-)
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