From: Luis Parravicini <lparravi@...>
Date: 2010-05-16T00:31:04+09:00
Subject: Re: class best way for getters ?

On Sat, May 15, 2010 at 12:27 PM, Ben Bleything <ben@bleything.net> wrote:
> 2010/5/15 Une Bévue <unbewusst.sein@google.com.invalid>:
>> def [a_key]
>>  return nil unless @attr.keys.include?(a_key)
>>  return @attr[a_key]
>> end
>
>  def []( a_key )
>    return @attr[a_key]
>  end
>
> but yes, that's a good option. By default hashes return nil when you
> dereference a key that doesn't exist, so unless you've changed that
> (by creating it with Hash.new(...) or similar) then you can leave that
> first line out.
>
> Ben

  You can also remove the "return" and leave it like this:

  def [](key)
    @attr[key]
  end


-- 
Luis Parravicini
http://ktulu.com.ar/blog/