First Factorial
Coderbyte
Have the function FirstFactorial(num) take the num parameter being passed and return the factorial of it. For example: if num = 4, then your program should return (4 * 3 * 2 * 1) = 24. For the test cases, the range will be between 1 and 18 and the input will always be an integer.
function FirstFactorial(num) {
if (num === 0 || num === 1) { // Base case: the factorial of 0 and 1 is 1
return 1;
} else { // Recursive case: multiply num by the factorial of num - 1
return num * FirstFactorial(num - 1);
}
}
// keep this function call here
console.log(FirstFactorial(readline()));
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