From: Mike Nelson <miken700@...>
Date: 2006-05-22T06:54:15+09:00
Subject: Re: rubynuby - confused by method name "inject"

Jim Weirich wrote:
> How I remember:  Inject takes a binary operation (e.g. +) and injects it 
> between each element of a list.
> 
>    [1,2,3].inject { |a,b| a+b }  => 1+2+3
> 
> -- Jim Weirich

I think about this in a slightly different way, which helps me 
rememeber. Something like, "#inject itorates over thie items in order 
but also _injects_ the result from the last block call into the current 
one."

  (1..5).inject { |injected_value, this_item| injected_value + this_item 
} => 15

-- 
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