Example of inherited fields (for...in obj) (#13)

Co-authored-by: Vlad <Dzyubavlad@gmail.com>

Author: Vlad Esin

JavaScript/4-for-in-obj.js

@@ -14,6 +14,8 @@ Object.defineProperty(hash, 'newField', {
   value: 'valueOfNewField',
 });
 
+Object.prototype.inheritedProperty = 'inherited';
+
 for (const key in hash) {
   const value = hash[key];
   console.log(