From: "Peña, Botp" <botp@...>
Date: 2006-08-07T16:36:58+09:00
Subject: inject does not inject last value

Hi All,

inject is a powerful method in ruby. but the ff gives me surprise..

irb(main):001:0> sum=0
=> 0
irb(main):002:0> [1,2,3,4,5].inject{|sum,e| sum+e }
=> 15
irb(main):003:0> sum
=> 10
irb(main):004:0>
irb(main):006:0> RUBY_VERSION
=> "1.8.5"
irb(main):007:0> prod=1
=> 1
irb(main):008:0> [1,2,3,4,5].inject(1){|prod,e| prod*e }
=> 120
irb(main):009:0> prod
=> 24

it seems that inject does not update accumulator (sum or prod in examples) on last iteration.

tested on windows and linux.

kind regards