factorial of a number

Question

I have the following code but it is not giving perfect result for factorial can u find it out plz

Answer 1

Recursion in JS is open to stack overflow error and also very slow. Looping by other means is better. My contribution to factorial code would be a straightforward one;

var fact = n => n > 0 ? Array.from({length: n}, (_,i) => i+1)
                             .reduce((p,c) => p*c)
                      : 1;
console.log(fact(5));