22 new updates
Leandro Caniglia
caniglia at dm.uba.ar
Wed Mar 31 14:35:23 UTC 1999
>At 7:29 Uhr -0800 30.03.1999, Dan Ingalls wrote:
>> 123 size no longer responds with 0.
>> nil size no longer responds with 0.
>
>Why ?
>
>I found the latter extremely handy in cases where one could get back either
>a (possibly empty) collection or nil.
I agree with the why question. Many collections are lazy initialized and
that makes nil size really useful. Moreover, size is a basic message; one
expects that any object can nicely respond to it.
Leandro
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