@end example
@end defun
+@defun seq-map-indexed function sequence
+ This function returns the result of applying @var{function} to each
+element of @var{sequence} and its index within @var{seq}. The
+returned value is a list.
+
+@example
+@group
+(seq-map-indexed (lambda (elt idx)
+ (list idx elt))
+ '(a b c))
+@result{} ((0 a) (b 1) (c 2))
+@end group
+@end example
+@end defun
+
@defun seq-mapn function &rest sequences
This function returns the result of applying @var{function} to each
element of @var{sequences}. The arity of @var{function} must match