From 0f46b283b76d7ce99b70749794bf705b251f9806 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Julius=20H=C3=A4rtl?= Date: Sat, 29 Dec 2018 22:53:02 +0100 Subject: [PATCH] Add helper function for reordering MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Julius Härtl --- src/helpers/applyOrderToArray.js | 39 ++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 src/helpers/applyOrderToArray.js diff --git a/src/helpers/applyOrderToArray.js b/src/helpers/applyOrderToArray.js new file mode 100644 index 000000000..f0bfbbf3b --- /dev/null +++ b/src/helpers/applyOrderToArray.js @@ -0,0 +1,39 @@ +/* + * @copyright Copyright (c) 2018 Julius Härtl + * + * @author Julius Härtl + * + * @license GNU AGPL version 3 or any later version + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as + * published by the Free Software Foundation, either version 3 of the + * License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see . + * + */ + +const arrayMove = function(arrayToSort, removedIndex, addedIndex) { + if (removedIndex === null && addedIndex === null) return arrayToSort + + const result = [...arrayToSort] + let itemToAdd = arrayToSort[removedIndex] + + if (removedIndex !== null) { + itemToAdd = result.splice(removedIndex, 1)[0] + } + + if (addedIndex !== null) { + result.splice(addedIndex, 0, itemToAdd) + } + return result +} + +export default arrayMove