davido,
You are correct as the following modified code shows:
#!/usr/bin/perl use strict; use warnings; use Benchmark qw(:all); my $length = (int rand 100) + 100; my @char = ( 'a' .. 'c' , '+' , 'd' .. 'f' ); my $string; $string .= $char[ int rand 7 ] for 0 .. $length ; my $count = -5; my $results = timethese ( $count, { 'transliterate' => sub { my $foo = $string; $foo =~ tr/ ++/ /; }, 'substitution' => sub { my $bar = $string; $bar =~s/\+ +/ /g; }, }, 'none' ); cmpthese( $results ) ; __END__ Rate substitution transliterate substitution 124624/s -- -84% transliterate 784349/s 529% --
Cheers - L~R

In reply to Re: Re: Re: Difference between tr// and s///? by Limbic~Region
in thread Difference between tr/// and s///? by kalamiti

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.