I'm trying to use the following function (extracted from the amazing emacs-prelude configuration)
(defun prelude-duplicate-current-line-or-region (arg) "Duplicates the current line or region ARG times. If there's no region, the current line will be duplicated. However, if there's a region, all lines that region covers will be duplicated." (interactive "p") (pcase-let* ((origin (point)) (`(,beg . ,end) (prelude-get-positions-of-line-or-region)) (region (buffer-substring-no-properties beg end))) (-dotimes arg (lambda (n) (goto-char end) (newline) (insert region) (setq end (point)))) (goto-char (+ origin (* (length region) arg) arg))))
But I get the following error:
symbol's function definition is void: -dotimes
Any ideas why do I get this error? Do I have a library missing or something?