export async function Sleep(time: number)
{
    return new Promise(res =>
    {
        setTimeout(res, time);
    });
}

export function arrayLast<T>(arr: { [key: number]: T, length: number; }): T
{
    return arr[arr.length - 1];
}

export function arrayMax<T>(arr: T[], f: (item: T) => number = a => (a as unknown as number)): [T, number]
{
    let max = -Infinity;
    let maxIndex = -1;
    for (let i = 0; i < arr.length; i++)
    {
        let item = arr[i];
        let v = f(item);
        if (v > max)
        {
            maxIndex = i;
            max = v;
        }
    }
    return [arr[maxIndex], maxIndex];
}