From: bbiker <renard@...>
Date: 2007-12-28T06:19:59+09:00
Subject: Re: Add Array#first= and Array#last= to std lib

On Dec 27, 4:59 am, Robert Klemme <shortcut...@googlemail.com> wrote:
> Hi,
>
> just today I came across a situation where I needed Array#last=
> because I wanted to do
>
> an_array.last += 1
>
> Does anybody else see this as useful?  Any issues with this?  If not
> I'll open an RCR.
>
> Kind regards
>
> robert
>
> --
> use.inject do |as, often| as.you_can - without end

There's already array#last and array#first

you csn do what you want with an_array[0] and an_array[-1]

irb(main):006:0> an_array = [3, 5, 7, 11, 9, 2]
=> [3, 5, 7, 11, 9, 2]
irb(main):007:0> an_array.last
=> 2
irb(main):008:0> an_array.first
=> 3
irb(main):009:0> an_array[0] = 19
=> 19
irb(main):010:0> an_array[-1] = 1
=> 1
irb(main):011:0> an_array.last
=> 1
irb(main):012:0> an_array.first
=> 19
irb(main):013:0>