function __fib2(n) {
    const fibs = [];
    Array.from({length: n + 1}).map((x, i) => i).forEach(i => {
        let result;
        if (i <= 1) {
            result = i;
        } else {
            result = fibs[i - 2] + fibs[i - 1];
        }

        fibs.push(result);
    });
    return fibs;
}