function fibonacciGenerator(n) { var output = []; if (n <= 0) { return "Numbers must be greater than zero"; } if (n === 1) { output = [0]; } else if (n === 2) { output = [0, 1]; } else { output = [0, 1]; for (var i = 2; i < n; i++) { output.push(output[output.length - 2] + output[output.length - 1]); } } return output; } console.log(fibonacciGenerator(5))