From: James Edward Gray II <james@...>
Date: 2007-08-22T21:35:39+09:00
Subject: Re: How to "cast" in Ruby

On Aug 22, 2007, at 7:29 AM, Kaldrenon wrote:

> On Aug 21, 10:11 pm, "Logan Capaldo" <logancapa...@gmail.com> wrote:
>> On 8/21/07, Kaldrenon <kaldre...@gmail.com> wrote:
>>> It's also exactly the same number of characters.
>>
>> I had to count to be sure, but you are indeed correct. :) I just  
>> think
>> "#{foo}" looks busier than foo.to_s
>
> By itself, I happen to agree, but I tend to dislike long method call
> chains as in the original example. They both do the same thing, so
> it's just a preference thing, I think.

Well, one definitely has Ruby doing more work:

#!/usr/bin/env ruby -wKU

require "benchmark"

TESTS = 1_000_000
Benchmark.bmbm do |results|
   results.report("iterpolation:") { TESTS.times { "#{TESTS}" } }
   results.report("to_s:")         { TESTS.times { TESTS.to_s } }
end
# >> Rehearsal -------------------------------------------------
# >> iterpolation:   1.400000   0.000000   1.400000 (  1.404947)
# >> to_s:           0.820000   0.000000   0.820000 (  0.817229)
# >> ---------------------------------------- total: 2.220000sec
# >>
# >>                     user     system      total        real
# >> iterpolation:   1.400000   0.000000   1.400000 (  1.395974)
# >> to_s:           0.820000   0.000000   0.820000 (  0.820689)

__END__

James Edward Gray II