From: Anurag Priyam <anurag08priyam@...>
Date: 2011-01-09T08:44:44+09:00
Subject: Re: Best way for Array#find+transform ?

> 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

How about, transforming and then selecting?

paths.map{|path| File.join(path, filename)}.select{|name| File.exist?(path)}

(Untested)

-- 
Anurag Priyam
http://about.me/yeban/