delete-if
(delete-if predicate list)
The destructive counterpart of remove-if: returns list with every element satisfying predicate spliced out in place. Because the head may change, use the return value rather than the original variable.
(delete-if predicate list)
The destructive counterpart of remove-if: returns list with every element satisfying predicate spliced out in place. Because the head may change, use the return value rather than the original variable.