From: matz@... (Yukihiro Matsumoto)
Date: 2004-04-04T23:18:59+09:00
Subject: Re: deciding between ruby and python

Hi,

In message "Re: deciding between ruby and python"
    on 04/04/04, "David A. Black" <dblack@wobblini.net> writes:

|That said, I've also never been 100% sure why String#+ couldn't be
|more tolerant -- that is, allow objects to present their #to_s
|representations, rather than insisting that they either be Strings or
|have a #to_str method.

Pre 1.0 Ruby was very tolerant about types: 1 + "2" gave 3, and
"2" + 1 gave "21".

But this tend to hide the type mismatch error, so that I had to follow
the "crash early" principle from Pragmatic Programmers.

							matz.