From: Sean O'Halpin <sean.ohalpin@...>
Date: 2008-05-22T03:48:36+09:00
Subject: Re: to_yaml method for array

On Wed, May 21, 2008 at 7:37 PM, Raj Singh <neeraj.jsr@gmail.com> wrote:
>
> I go to http://www.ruby-doc.org/core/ and look for Array methods. I see
> to_yaml. So why in the irb I am getting undefined method to_yaml?

You need to

  require 'yaml'

to load the yaml library.

Regards,
Sean