From: David Alan Black <dblack@...>
Date: 2001-01-08T06:13:22+09:00
Subject: [ruby-talk:8783] Re: No :<, :>, etc. methods for Array

Hello --

On Mon, 8 Jan 2001, Brian F. Feldman wrote:

> Except that I don't really ever see the need for the inject functionality 
> itself.  A general sum method wouldn't prevent an inject method from being 
> created, and I feel it's much more generally important (if it were in 
> Enumerable, it feels natural next to min and max).
> 
> I know you can define sum in terms of inject, but what is the point of 
> having inject if people are just going to use it to create sum?

You're assuming a lot about what people might or might not do.
Doesn't it make sense, at the level of language/library enhancement,
to think about things with a more general functionality, like inject?
Not that sum would be out of place -- but given that both could exist,
what's the argument against inject?


David

-- 
David Alan Black
home: dblack@candle.superlink.net
work: blackdav@shu.edu
Web:  http://pirate.shu.edu/~blackdav