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Some list function examples.

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Eli Barzilay
2013-07-16 04:13:06 -04:00
parent b55ce4f045
commit 0063574a4d
1 changed files with 9 additions and 0 deletions
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@@ -142,6 +142,15 @@ my-pet ; => #<dog>
;; Use `append' to add lists together ;; Use `append' to add lists together
(append '(1 2) '(3 4)) ; => '(1 2 3 4) (append '(1 2) '(3 4)) ; => '(1 2 3 4)
;; Lists are a very basic type, so there is a *lot* of functionality for
;; them, a few examples:
(map add1 '(1 2 3)) ; => '(2 3 4)
(map + '(1 2 3) '(10 20 30)) ; => '(11 22 33)
(filter even? '(1 2 3 4)) ; => '(2 4)
(count even? '(1 2 3 4)) ; => 2
(take '(1 2 3 4) 2) ; => '(1 2)
(drop '(1 2 3 4) 2) ; => '(3 4)
;;; Vectors ;;; Vectors
;; Vectors are fixed-length arrays ;; Vectors are fixed-length arrays