From: "Jesús Gabriel y Galán" <jgabrielygalan@...>
Date: 2009-05-06T19:29:56+09:00
Subject: Re: an array to string in different lines

On Wed, May 6, 2009 at 11:25 AM, Sijo Kg <sijo@maxxion.com> wrote:
> Hi
>   I am collecting errors like object.errors.on(:field)  So some times i
> get it like an array
> ["error1_message","error2_message"]  or
> "error1_message" a string
>
>   So how can i format this in more than one line  if its an array(or
> either case)
> example in first case how can i get it like
> "error1_message"
> "error2_message"

A way that works for both cases (array of strings and string):

irb(main):002:0> s = ["a", "b"]
=> ["a", "b"]
irb(main):003:0> puts [*s].join("\n")
a
b
=> nil
irb(main):004:0> s = "a"
=> "a"
irb(main):005:0> puts [*s].join("\n")
a

Another one:
irb(main):004:0> s = "a"
=> "a"
irb(main):006:0> puts [s].flatten.join("\n")
a
=> nil
irb(main):007:0> s = ["a", "b"]
=> ["a", "b"]
irb(main):008:0> puts [s].flatten.join("\n")
a
b



Hope this helps,

Jesus.