Merge pull request #4 from misteroh/patch-1

Update constant.js

Author: sgaurav

constant.js

@@ -1,10 +1,19 @@
 /**
-  * constant is a single assignmet variable.
+  * constant is a single assignment variable.
   */
 
 function foo(){
     const i = 1;
 
     var bar = i; // 1
     var i = 2;  // error
-}
+}
+
+function fooTwo(){
+    const object = {
+        nestedProperty: 1
+    };
+    
+    object = 2; // error
+    object.nestedProperty = 2;  // no error
+}