Now an iterator getting atMax: x elements could be better because we could them combined it with collect:, detect:...
Stef On Sun, Jan 21, 2018 at 5:56 PM, Stephane Ducasse <stepharo.s...@gmail.com> wrote: > I thought about something like that... > > SequenceableCollection >> atMax: numberOfItems do: aBlock > "Execute the iteration with at the maximum numberOfItems. If the > receiver contains less than numberOfItems iterate them all." > 1 to: (numberOfItems min: self size) do: [:index | aBlock value: > (self at: index)] > > This is an abstraction that we need to treat some samples. > > Stef > > On Sun, Jan 21, 2018 at 5:47 PM, Stephane Ducasse > <stepharo.s...@gmail.com> wrote: >> Hi Ben and Clement >> >> I have a collection (a dictionary in my case) and I want to get >> maximum 5 bindings out of it and iterate on them. >> I want keysAndValuesDo: or do: but only up to 5 elements. >> >> aDict atMax: 5 do: [:each | ] >> >> So I learned from:to:do: >> >> aCollection atMax: 5 do: [:each | ] >> >> Does it make sense? >> >> Stef >> >> On Sun, Jan 21, 2018 at 1:16 PM, Clément Bera <bera.clem...@gmail.com> wrote: >>> I don't think we do. Do you need it on SequenceableCollection or >>> HashedCollection too ? >>> >>> Recently I was trying to iterate over the first N elements of a collection >>> and since there was no #first:do: I used #from:to:do:. I guess you could use >>> that too: >>> >>> aCollection from: 1 to: (aCollection size min: 1000) do: aBlock >>> >>> Which guarantees you iterate at max over 1000 elements. But that API is >>> SequenceableCollection specific. >>> >>> On Sun, Jan 21, 2018 at 11:44 AM, Ben Coman <b...@openinworld.com> wrote: >>>> >>>> On 21 January 2018 at 18:36, Stephane Ducasse <stepharo.s...@gmail.com> >>>> wrote: >>>> > Hi >>>> > >>>> > I would like to iterate at max on a certain amount of elements in a >>>> > collection. >>>> > And I was wondering if we have such iterator. >>>> >>>> I'm not clear what functionality your asking for. Could you present >>>> it as code & result if you assumed the iterator you want was >>>> available? >>>> >>>> cheers -ben >>>> >>> >>> >>> >>> -- >>> Clément Béra >>> Pharo consortium engineer >>> https://clementbera.wordpress.com/ >>> Bâtiment B 40, avenue Halley 59650 Villeneuve d'Ascq
