Since âatMax:â doesnât seem as clear to me, Iâd prefer âupToMax:â or âwithMax:â or (especially) the following: upTo: anInteger timesDo: aBlock upTo: anInteger timesSelect: aBlock upTo: anInteger timesCollect: aBlock James Foster
On Jan 21, 2018, at 8:56 AM, Stephane Ducasse <stepharo.self@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.self@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.clement@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 <btc@openinworld.com> wrote:
On 21 January 2018 at 18:36, Stephane Ducasse <stepharo.self@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