From: Robert Klemme <shortcutter@...>
Date: 2011-03-04T02:35:28+09:00
Subject: Re: Extracting the shortest string from an array

On 03.03.2011 16:02, Thorsten Hater wrote:
> in Ruby 1.9 this should work:
>
>     arr.sort_by(&:length)[0]

Inefficient as it creates a new array.  Better do

irb(main):001:0> ["qwe", "qwerty"].min_by(&:length)
=> "qwe"

> or more portable/readable (1.8 compatible):
>
>     arr.sort_by{|s| s.length }[0]

Inefficient as well (see above).

Cheers

	robert

-- 
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/