From: FrihD <lucas.dicioccio@...>
Date: 2009-01-11T05:29:54+09:00
Subject: Re: What is meant by << operator ???

Hello,

Muhammad mohsin ali Ma wrote:
> What is meant by << operator?

It is not an operator, but actually is the method "<<". So it depends on 
the object that receives this method.

> def add_product(product)
>   current_item = @items.find {|item| item.product == product}
>   if current_item
>     current_item.increment_quantity
>   else
>     current_item = CartItem.new(product)
>   @items << current_item
>   end
>   current_item
> end

Consequently given that @items certainly is an Array, it appends 
current_item to @items which seems quite intuitive.

--Lucas