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.wobben@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