From: "Jonas Pfenniger (zimbatm)" <jonas@...>
Date: 2011-01-09T08:38:50+09:00
Subject: Best way for Array#find+transform ?

There is a pattern that I'm using quite regularly, but I'm not
satisfied by my implementation.

-------
filename = "something"
paths = ["/usr", "/usr/local", "/opt"]
abs_file = nil
paths.each do |path|
  path = File.join(path, filename)
  File.exist?(path)
    abs_file = path
    break
  end
end
-------

I know I can come up with a new method on Array that would shorten this to:

------
abs_file = paths.find_transform do |path|
  path = File.join(path, filename)
  File.exist?(path) && path
end
------

But is there an existing method that I oversaw that does about the same ?
1. Stop iterating if the element is found
2. Return the transformed element

Cheers,
  zimbatm