— Function: mapal function &rest alists+ ⇒ alist-1
— Function: mapalist function &rest alists+ ⇒ result-list
— Function: mapacon function &rest alists+ ⇒ concatenated-results

These are analogous to mapc, mapcar and mapcan, respectively, but for “cdr-valued” alists. The difference is that alists are expected and function will receive two arguments for each list element: the key and value.

— Function: mapal* function &rest alists+ ⇒ alist-1
— Function: mapalist* function &rest alists+ ⇒ result-list
— Function: mapacon* function &rest alists+ ⇒ concatenated-results

Analogous to the non-starred versions above, but for “cadr-valued” alists.