Re: [Pharo-dev] #sum:, #detectSum:, #sumNumbers:

[Yuriy Tymchuk]

#sum:ifEmpty: looks nice

> On 01 Dec 2015, at 12:45, Stephan Eggermont <step...@stack.nl> wrote:
> 
> On 01-12-15 11:46, Sven Van Caekenberghe wrote:
>> The basic question for me is, what should
>> 
>>   #() sum
>> 
>> return. Right now, it is an error, I would very much like that for this 
>> common case the result would be 0. There is a lot of power (easy of use) in 
>> a unary selector, we should not destroy that with semantics that force a 
>> test before using it.
> 
> I like the error, it aligns with most of our collection protocol.
> It shows the need for #sum:ifEmpty: though
> 
> Stephan
> 
> 
>