From: "David A. Black" <dblack@...>
Date: 2009-10-05T21:36:16+09:00
Subject: Re: Count the number of times an element occurs in an array

Hi --

On Mon, 5 Oct 2009, Jim Burgess wrote:

> Cheers for the replies, they are certainly very interesting and I will
> work through all of them.
> However, now I'm having weird problem.
>
> When I run the following on Linux:
> a = ["a", "b", "a", "b", "b"]
>
> a.uniq.each do |elem|
>  puts "#{elem}\t#{a.count(elem)}"
> end
>
> I get the expected output :
> a  2
> b  3
>
> But when I run exactly the same code on Windows I get:
>
> undefined method `count' for ["a", "b", "a", "b", "b"]:Array
> (NoMethodError)
>
> ruby -v (Linux): ruby 1.8.7 (2008-08-11 patchlevel 72) [x86_64-linux]
> ruby -v (Windows): ruby 1.8.6 (2009-09-24 patchlevel 111) [i386-mswin32]
>
> Does anyone have an idea why this could be happening.
> I have tried searching for a solution with Google, but could find
> nothing helpful.

count is a post-1.8.6 method.


David

-- 
David A. Black, Director
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