matz / ruby-lang.org (Yukihiro Matsumoto) wrote in message news:<1020898522.044524.14948.nullmailer / picachu.netlab.jp>...
> 
> If you call intern everytime, hash['+symbol'] (1 hash ref) is faster
> than hash['+symbol'.intern()] (2 hash ref).
> 
> 							matz.

Oh, I understand clearly.
Thank you.

This means that both 'string to symbol' and 'symbol(or object) to hash-key'
use the same hash-function, isn't it!

Regards,
kwatch