penpot/frontend/src/app/util/array.cljs

69 lines
1.3 KiB
Clojure

;; This Source Code Form is subject to the terms of the Mozilla Public
;; License, v. 2.0. If a copy of the MPL was not distributed with this
;; file, You can obtain one at http://mozilla.org/MPL/2.0/.
;;
;; Copyright (c) KALEIDOS INC
(ns app.util.array
"A collection of helpers for work with javascript arrays."
(:refer-clojure :exclude [conj! conj filter map reduce find])
(:require
[cljs.core :as c]))
(defn conj
"A conj like function for js arrays."
[a v]
(js* "[...~{}, ~{}]" a v))
(defn conj!
"A conj! like function for js arrays."
([a v]
(.push ^js a v)
a)
([a v1 v2]
(.push ^js a v1 v2)
a)
([a v1 v2 v3]
(.push ^js a v1 v2 v3)
a)
([a v1 v2 v3 v4]
(.push ^js a v1 v2 v3 v4)
a)
([a v1 v2 v3 v4 v5]
(.push ^js a v1 v2 v3 v4 v5)
a)
([a v1 v2 v3 v4 v5 v6]
(.push ^js a v1 v2 v3 v4 v5 v6)
a))
(defn normalize-to-array
"If `o` is an array, returns it as-is, if not, wrap into an array."
[o]
(if (array? o)
o
#js [o]))
(defn without-nils
[^js/Array o]
(.filter o (fn [v] (some? v))))
(defn filter
"A specific filter for js arrays."
[pred ^js/Array o]
(.filter o pred))
(defn map
[f a]
(.map ^js/Array a f))
(defn reduce
[f init val]
(.reduce ^js/Array val f init))
(defn find-index
[f v]
(.findIndex ^js/Array v f))
(defn find
[f v]
(.find ^js/Array v f))