I normally do this with two nested #do: calls:
Array streamContents: [:stream |
#(a b) do: [: i |
#('one' 'two' 'three') do: [:j |
stream nextPut: (i , ' matches ' , j asString)]]].
However, it may well be that there some method like this in Pharo or some external package on SqueakSource.
Am 07.07.2011 um 12:02 schrieb Bernat Romagosa:
> Hi list,
> I'd love to have something like:
> #(#a #b) combinationsWith: #('one' 'two' 'three') collect: [:i :j | i , ' matches ' , j asString]
> That returns the collection:
> #('a matches one' 'a matches two' 'a matches three' 'b matches one' 'b matches two' 'b matches three')
> In other words, is there some kind of vectorial-product-like method for collections in Smalltalk?
> Bernat Romagosa.