export function minByOrNull<T>(value: T[], transform: (it: T) => number): T | null {
    if (value.length === 0) return null;
    let min = value[0];
    let minVal = transform(min);
    for (let index = 1; index < value.length; index++) {
        const it = value[index];
        const val = transform(it);
        if (val < minVal) {
            min = it;
            minVal = val;
        }
    }
    return min;
}