Files
openstapps/packages/collection-utils/src/min.ts
2023-05-31 14:04:05 +02:00

24 lines
934 B
TypeScript

/*
* Copyright (C) 2022 StApps
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation, version 3.
*
* 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 General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <https://www.gnu.org/licenses/>.
*/
/**
* Returns the minimum value of a collection.
*/
export function minBy<T>(array: T[], transform: (item: T) => number | undefined): T {
const transforms = array.map(transform);
const min = Math.min(...(transforms.filter(it => !!it) as number[]));
return array.find((_, i) => transforms[i] === min) as T;
}