function fibonacci(n) {
    var listFibo = [0]; // first element is defined to 0;
    fibonacciRecursive(n, listFibo);
    return listFibo;
}

function fibonacciRecursive(num, memo) {
    var validInput = typeof (num) != "number"
    || Number.isInteger(num) == false
    || num <= 0

    if (validInput) throw new Error("Wrong input");
    else {
        memo = memo || {};
        let index = num - 1;
        if (memo[index]) return memo[index];
        if (num === 1) return memo[index];
        if (num === 2) return memo[index] = 1;
        return memo[index] = fibonacciRecursive(num - 1, memo) + fibonacciRecursive(num - 2, memo);
    }
}
console.log(fibonacci(10));