From: Sebastian Hungerecker <sepp2k@...>
Date: 2007-12-28T04:58:19+09:00
Subject: Re: Add Array#first= and Array#last= to std lib

MonkeeSage wrote:
> On Dec 27, 1:38 pm, Sebastian Hungerecker wrote:
> > MonkeeSage wrote:
> > > IOW, #pop returns a value, and this is just what #last does.
> >
> > How is [] different in that regard? That only returns a value, too.
>
> Exactly. It's not... [] = 3 => syntax error...

That [] there is an emtpy array. That's not the [] I was talking about.
I'm sorry if I wasn't clear, let me rephrase:
You seemed to say that while there is a method Array#[]= (which I assume, 
you're ok with, since you haven't stated otherwise), there shouldn't be a 
method Array#last= since Array#last only returns a value like Array#pop does. 
Now my question to you is: How is Array#[] different in that regard than 
Array#last? I mean some_array[-1] also only returns a value. But you don't 
have a problem with people being able to write some_array[-1] = some_value
do you?


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