Recursive factorial in Javascirpt

factorial.js

var factorial = function factorial_i(n) { 
  return (n > 1) ? n * factorial_i(n-1) : n;
}; 

console.log(factorial(1)); //1
console.log(factorial(2)); //2
console.log(factorial(3)); //6
console.log(factorial(4)); //24
console.log(factorial(5)); //120