Function factorial

sesion-10-modulos/modulos/matematicas.js:13–20

(a)

}

function factorial(a) {
    // Factorial de 5: 5 * 4 * 3 * 2 * 1
    let factorial = 1;
    for (let i = 2; i <= a; i++) {
        factorial *= i;
    }
    return factorial;
}

module.exports = {
    suma,