From: benny <linux@...>
Date: 2004-01-28T02:09:56+09:00
Subject: Re: newbee question about "missing" hash methods +, += and <<

Am Wed, 28 Jan 2004 01:39:01 +0900
schrieb ts <decoux@moulon.inra.fr>:

> >>>>> "H" == Hal Fulton <hal9000@hypermetrics.com> writes:
> 
> H> In other words, I expect + to be commutative always. But probably
> H> someone will now show me a case where it is not in Ruby.  :)
> 
>   ruby -e 'p [1]+[2]==[2]+[1]'
> 
> 
> Guy Decoux
> 
> 
> 
> 
> 

conclusion: no argument against "<<" / "+" for hashs?
and "delete" is even more obscure when we have "-" : e.g.

testhash = {"key" => "value", "other key" => "other entry"}
otherhash = {"other key" => "other entry"}

testhash - "key" #->  {"other key" => "other entry"}

# should delete the entry with the key "key"

testhash - otherhash #-> {}

# should delete the corresponding entry as well

I think this is far more intuitive and flexible