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In JavaScript Create a Function that Takes a Number to Return a Factorial
Posted on June 15, 2015 in Algorithms, JavaScript by Matt Jennings

function factorialInput(num) {
  var factorial = 1;
  for(var i = num; i > 0; i--) {
    factorial *= i;
  }
    
  return factorial;
}

/*
Output below is:
1 * 2 * 3 * 4 * 5 = 120
*/
console.log(factorialInput(5));