From: Sam Kong <sam.s.kong@...>
Date: 2007-10-20T04:01:20+09:00
Subject: What's the ruby way of grouping elements of an array?

Hi,

I thought this would be a common need but I couldn't find a method.

Let's say I have an array of objects.
I want to group the elements by a property of objects.

people.group_by do |person|
  person.age
end

The above method should return an array of arrays grouped by age.

What's the ruby way for this case?
I think I can implement it but I am sure that a good way already exists.

Thanks.

Sam
-- 
Posted via http://www.ruby-forum.com/.