Re: student question: append-map

[Paul Morris]

> On Jun 22, 2015, at 7:15 PM, David Garfinkle <address@hidden> wrote:
> 
> Can't seem to find any code examples of the Scheme function (append-map f
> list1 list2) online, and I can't seem to call it correctly at all. Could
> anyone show me how it works?

It seems that the function given as the first argument needs to return a list, 
that way the lists it returns can be appended.

Cheers,
-Paul


#(display
  (append-map
   (lambda (a b) (list (+ a b)))
   '(1 2 3)
   '(4 5 6)))

=> (5 7 9)