From: "David A. Black" <dblack@...>
Date: 2009-02-11T07:04:06+09:00
Subject: Re: Counting Occurrences of a String in an Array

Hi --

On Wed, 11 Feb 2009, shrouded.shoyu@gmail.com wrote:

> Hi,
>
> I'm pretty new to Ruby, and I've been trying to figure out the best
> way to do this with little luck.
>
> I have an array that is all strings, and I need to count, for each
> string in the array, how many times some substring appears in it.
>
> So, for example, my array is ["aaa", "aab", "abb", "bbb"] and I want
> to return a new array that tells me how many times "a" appears: [3, 2,
> 1, 0]
>
> Can anyone point me in the right direction with this?

array.map {|str| str.count('a') }


David

-- 
David A. Black / Ruby Power and Light, LLC
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