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Merge pull request #643 from uvtc/patch-1

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`sort` doc
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Calvin Rose 2021-02-26 16:28:27 -06:00 committed by GitHub
commit 970f9b3981
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1 changed files with 12 additions and 6 deletions
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src/boot/boot.janet
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@ -778,24 +778,30 @@
a) a)
(defn sort (defn sort
"Sort an array in-place. Uses quick-sort and is not a stable sort." ``Sort `ind` in-place, and return it. Uses quick-sort and is not a stable sort.
[a &opt before?]
(sort-help a 0 (- (length a) 1) (or before? <))) If a `before?` comparator function is provided, sorts elements using that,
otherwise uses `<`.``
[ind &opt before?]
(sort-help ind 0 (- (length ind) 1) (or before? <)))
(defn sort-by (defn sort-by
``Returns `ind` sorted by calling ``Returns `ind` sorted by calling
a function `f` on each element and comparing the result with <.`` a function `f` on each element and comparing the result with `<`.``
[f ind] [f ind]
(sort ind (fn [x y] (< (f x) (f y))))) (sort ind (fn [x y] (< (f x) (f y)))))
(defn sorted (defn sorted
"Returns a new sorted array without modifying the old one." ``Returns a new sorted array without modifying the old one.
If a `before?` comparator function is provided, sorts elements using that,
otherwise uses `<`.``
[ind &opt before?] [ind &opt before?]
(sort (array/slice ind) before?)) (sort (array/slice ind) before?))
(defn sorted-by (defn sorted-by
``Returns a new sorted array that compares elements by invoking ``Returns a new sorted array that compares elements by invoking
a function `f` on each element and comparing the result with <.`` a function `f` on each element and comparing the result with `<`.``
[f ind] [f ind]
(sorted ind (fn [x y] (< (f x) (f y))))) (sorted ind (fn [x y] (< (f x) (f y)))))