Initial data commit

Task/Factorial/JavaScript/factorial-1.js

@@ -0,0 +1,12 @@
+function factorial(n) {
+  //check our edge case
+  if (n < 0) { throw "Number must be non-negative"; }
+
+  var result = 1;
+  //we skip zero and one since both are 1 and are identity
+  while (n > 1) {
+    result *= n;
+    n--;
+  }
+  return result;
+}