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Diffstat (limited to 'doc/lispref/sequences.texi')
| -rw-r--r-- | doc/lispref/sequences.texi | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/doc/lispref/sequences.texi b/doc/lispref/sequences.texi index 9869fe4c510..002a9ceceec 100644 --- a/doc/lispref/sequences.texi +++ b/doc/lispref/sequences.texi @@ -572,6 +572,21 @@ element of @var{sequence}. The returned value is a list. @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 |