From: Robert Klemme <shortcutter@...>
Date: 2010-03-26T18:15:54+09:00
Subject: Re: Creating a gsub! method for Arrays

2010/3/26 Derek Cannon <novellterminator@gmail.com>:
> After playing around some more, I've found a solution.
>
> For anyone who is interested, the following code works:
>
> class Array
>  def gsub!(pattern, replacement)
>    each { |x|
>      x.gsub!(pattern, replacement)
>      }
>  end
> end

What is the benefit of doing

arr.gsub! /foo/, 'bar'

over

arr.each {|s| s.gsub! /foo/, 'bar'}

?  Frankly I'd rather use the latter form.  Because otherwise you'll
have to put a method in Array (or Enumerable for that matter) for
*every* operation you want to apply to elements.  Additionally, there
is another point: since you made Array#gsub! look like String#gsub!
this might confuse readers of the code - especially if someone picks
bad variable names like "a".

Kind regards

robert

-- 
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