Arc Forum | Yep. By defining popnth, you get a single function that performs a specific task...

Arc Forum

1 point by shader 5564 days ago | link | parent

Yep. By defining popnth, you get a single function that performs a specific task. But if you define a setform, now any function that wants to operate on a "place" can do so.

In theory, you can now do things like

  (= (nthcdr 3 lst) '(a s d f))

and set the 3rd cdr of lst to (a s d f)