From: Todd Benson <caduceass@...>
Date: 2007-06-03T23:57:43+09:00
Subject: Re: delete in Array (if exist) and count

On 6/3/07, Josselin <josselin@wanadoo.fr> wrote:
> I am trying to delete an element from an array if it exists and count
> the number of item afterwards
>
> I wrote
>
> anArray = [1,2,3,4,5,6,7,8,9]
> anArray.size
> => 9
> anArray.map {|e| e if e != 4}.compact
> => [1, 2, 3, 5, 6, 7, 8, 9]
>  anArray.map {|e| e if e != 4}.compact.size
> => 8
>
>
> is ther a better way to do it... it it's enough ? (learning always how
> to write better code..)

Array#delete works also with no need for a block (i.e. you're only
checking for equality)

anArray = [1,2,3,4,5,6]
p anArray.delete(4)
p anArray.size