From: brabuhr@...
Date: 2010-08-04T03:24:21+09:00
Subject: Re: Inject problem

On Tue, Aug 3, 2010 at 1:55 PM, Amir Ebrahimifard <amiref@ymail.com> wrote:
> In inject method , everytime that inject called what is returned ? for
> example in this code  everytime what is returned ?
>
> array = [*1..10]
> array.inject(0) { | memo , item | memo + item }

irb(main):001:0> array = [*1..10]
=> [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
irb(main):002:0> array.inject(0) { | memo , item | puts
"#{memo}\t#{item}"; memo + item }
0	1
1	2
3	3
6	4
10	5
15	6
21	7
28	8
36	9
45	10
=> 55