From: Harry Kakueki <list.push@...>
Date: 2009-10-26T15:32:03+09:00
Subject: Re: Array#collect in a method call, not working for me

On Mon, Oct 26, 2009 at 1:19 PM, Michael Randall <randallsata@gmail.com> wrote:
>
> I am writing a method definition to double any number, or all numbers if
> an array of numbers is passed to it. When I use array.collect outside of
> the method, it works as expected. When I place it inside of the method,
> instead of multiplying each integer, it treats the entire array as one
> object and double it, [1, 2, 3, 4] becoming 12341234.
>

Using code similar to yours.......
You could try this or something like this.

def double(n)
  [n].flatten.map {|num| num * 2 }
end

puts double([1, 2, 3, 4])
puts
puts double(3)


Harry

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