factorial function in javascript code example

Example 1: javascript factorial

function factorial(n) {
  if (n < 0) return;
  if (n < 2) return 1;
  return n * factorial(n - 1);
}

Example 2: factorial javascript function

function factorialize(num) {
  if(num < 2) return 1;
  return num *= factorialize(num - 1);
}

Example 3: factorial javascript

// Simple arrow function solution
var factorial = n => (n <= 0) ? 1: n * factorial(n - 1);

Example 4: javascript factorial of a number

const factorial = n => n <= 1 ? 1 : n * factorial(n - 1);

// Examples
factorial(2);   // 2
factorial(3);   // 6

Example 5: factorial function javascript

function factorial(n) {
        if (n > 1) {
            return n * factorial(n - 1);
        }
        return 1;
    }

Example 6: factorial program in javascript

function fact(N){
  if(N <= 1){
  	return "1";
  }
  else
  {
    return N * fact(N-1);  
  }
}

fact(5);