recursion_by_definition

function factorial(number) {
    var currentNum = null;
    if (number == 1) {
        print("number is now 1");
        return number;
    }
    else {
        currentNum = number * factorial(number - 1);
        print("Current number is", number);
        print("Current return of the function is", currentNum);
        return currentNum;
    }
}

print(factorial(5));
// when a function is called recursively, the results of the function's computation
// are temporarily suspended while the recursion is in progress.