Factorial

function factorialRecursion(number) {
    if (number <= 2) {
        return number;
    } else {
        return number * factorialRecursion(number - 1);
    }
}

function factorialIterative(number) {
    if (number <= 2) {
        return number;
    }
    
    let value = 1;
    for(let i = 1; i <= number; i++) {
        value = value * i;
    }
    return value;
}

console.log(factorialIterative(5));
console.log(factorialIterative(6));
console.log(factorialIterative(10));
console.log(factorialIterative(2));

console.log(factorialRecursion(5));
console.log(factorialRecursion(6));
console.log(factorialRecursion(10));
console.log(factorialRecursion(2));