From: "rmagick@..." <rmagick@...>
Date: 2007-03-24T07:50:05+09:00
Subject: Re: How to Convert String to Array

On Mar 23, 6:36 pm, Shengzhi Li <shengz...@gmail.com> wrote:
> Hey everyone,
>
> Newb question: I want to read the user input an array of numbers. Is
> this possible? If not, then I want to convert the string input (from
> gets) into an array.
>
> For example:
>
> user inputs [5,3,46,6,5]
> gets.chomp converts this to a string "[5,3,46,6,5]"
> I want [5,3,46,6,5] (the arrray, not the string)
>
> Any help would be greatly appreciated.
>
> Thanks,
>
> ~sphoenixee~
>
> --
> Posted viahttp://www.ruby-forum.com/.

irb(main):017:0> x = '[5,3,46,6,5]'
=> "[5,3,46,6,5]"
irb(main):018:0> y = x[1..-2].split(',').collect! {|n| n.to_i}
=> [5, 3, 46, 6, 5]
irb(main):019:0>

1. x[1..-2] is the string without the brackets.
2. split(',') splits the string at commas into an array of strings.
3. collect! calls .to_i on each string in the array and replaces the
string with the result of the conversion.