export type PromiseSettledAndPartitioned<T> = [T[], any[]];

export function partitionPromiseSettledResults<T>() {
    return [
        (
            [successes, failures]: PromiseSettledAndPartitioned<T>,
            item: PromiseSettledResult<T>
        ) =>
            item.status === "rejected"
                ? ([
                      successes,
                      [item.reason, ...failures]
                  ] as PromiseSettledAndPartitioned<T>)
                : ([
                      [item.value, ...successes],
                      failures
                  ] as PromiseSettledAndPartitioned<T>),
        [[], []] as PromiseSettledAndPartitioned<T>
    ] as const;
}