tried simplified the condition checks in get angle type

Author: TzeMingHo

Sprint-3/1-implement-and-rewrite-tests/implement/1-get-angle-type.js

@@ -8,16 +8,13 @@
 // Then, write the next test! :) Go through this process until all the cases are implemented
 
 function getAngleType(angle) {
-  if (
-    angle === null ||
-    (typeof angle !== "number" && typeof angle !== "string")
-  ) {
+  if (typeof angle !== "number" && typeof angle !== "string") {
     return "Input should be a number or a number in string";
   }
-  angle = Number(angle);
-  if (isNaN(angle)) {
+  if (angle === null || isNaN(Number(angle))) {
     return "Input should be a number or a number in string";
   }
+  angle = Number(angle);
   if (angle < 0 || angle > 360) {
     return "Angle should be between 0 and 360";
   }