Re: [Pharo-users] How to take care that the + before a number is ignored

[Roelof Wobben]

I know, that output is given by the AdventOfCode 2018 challenge. Roelof Op 2-12-2018 om 20:36 schreef Richard O'Keefe: Thinking about this functionally, you want    to sum    the array elements that are not + . So,    (array select: [:each | each ~~ #+]) sum The *best* approach is not to put the + symbols into the array in the first place. On Sun, 2 Dec 2018 at 23:46, Roelof Wobben <r.wob...@home.nl> wrote: Op 2-12-2018 om 11:15 schreef Hilaire: > #(+1 -8) inject: 0 into: [:sum :each | each ~= #+ ifTrue: [sum +  each] > ifFalse: [sum]] . Thanks, Now to stretch my mind I will try to make one with double-dispatch. Roelof