// Write function below const range = (start, end, length = end - start + 1) => Array.from({ length }, (_, i) => start + i) const factorial = number => { const numArray = range(1, number); return numArray.reduce((total, value) => total*value) };
// Write function below const range = (start, end, length = end - start + 1) => Array.from({ length }, (_, i) => start + i) const factorial = number => { const numArray = range(1, number); return numArray.reduce((total, value) => total*value) };