Fac Recursion (Pest control - find the bugs and fix them).js

/*
Description:
The code is a recursive attempt in calculating the result of a factorial function.
I.e. the result of 3! (Factorial of 3) is 3x2x1 = 6.
In case of 0! the result is 1 and in case of a negative factorial the result should be 0.

The goal is to find the bugs in the sourcecode and fix them (play a little pest control).
*/

function facRecursion(value) {
  if (value < 0) return 0;
  if (value <= 1) return 1;
  return value * facRecursion(value - 1);
}