From: miles@... (Miles Egan)
Date: 2001-10-16T04:04:57+09:00
Subject: [ruby-talk:22584] Re: Array.filter

On Tue, 16 Oct 2001 02:50:35 +0900, Jimmy Thrasher <jjthrash@pobox.com> wrote:
>Miles,
>
>> Where is the nondestructive Array.filter?  I know that the old
>Array.filter has
>> been deprecated but I don't see a function that gives me this:
>>
>> a = [1, 2, 3, 4]
>> b = a.filter { |i| i % 2 = 0 }
>>
>> leaving a = [1, 2, 3, 4] and b = [2, 4].
>
>Try Array#select.
>
>irb(main):001:0> a = [1,2,3,4]
>[1, 2, 3, 4]
>irb(main):002:0> b = a.select { |i| i % 2 == 0 }
>[2, 4]
>
>Jimmy

Excellent.  Thanks for your help.  This isn't in the docs, so I missed it.

-- 
miles egan