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

[Roelof Wobben]

sorry, then I misunderstood your code. Roelof Op 2-12-2018 om 20:48 schreef Richard O'Keefe: Who said anything about deleting any numbers?  The code fragment I posted did not delete any numbers; it merely made a new array with everything that was not #+.  In the original post there were no strings.  (By the way, you wrote "trailing" where you meant "leading".) On Mon, 3 Dec 2018 at 08:40, Roelof Wobben <r.wob...@home.nl> wrote: and I do not want to delete all numbers that begin with a + but remove the trailing +  from a string which look like this +15 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