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

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