On 22 January 2018 at 00:47, 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 | ]
"atMax" sound a bit like comparison rather than counting. Perhaps better would be... aDict atMost: 5 do: [:each | ] "or" aDict for: 5 do: [:each | ] but rather than introduce three or more messages... aDict atMost: 5 do: [:each| ... ] aDict atMost: 5 select: [:each| ... ] aDict atMost: 5 collect: [:each| ... ] why not introduce just one method?.... (aDict any: 5) do: [:each| ... ] (aDict any: 5) select: [:each| ... ] (aDict any: 5) collect: [:each| ... ] cheers -ben
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