Family Day update

Task/Factorial/JavaScript/factorial-1.js

@@ -2,11 +2,11 @@ function factorial(n) {
   //check our edge case
   if (n < 0) { throw "Number must be non-negative"; }
 
-  var sum = 1;
+  var result = 1;
   //we skip zero and one since both are 1 and are identity
   while (n > 1) {
-    sum *= n;
+    result *= n;
     n--;
   }
-  return sum;
+  return result;
 }