diff --git a/01-variables-data-types/04-data-types/script.js b/01-variables-data-types/04-data-types/script.js
index a3287e1c..a3bbb1e1 100644
--- a/01-variables-data-types/04-data-types/script.js
+++ b/01-variables-data-types/04-data-types/script.js
@@ -15,11 +15,9 @@ const aptNumber = null;
 // let score;
 const score = undefined;
 
-// Symbol
-const id = Symbol('id');
+// // Symbol
+// const id = Symbol('id');
 
-// BigInt
-const n = 9007199254740991n;
 
 // Reference Types
 
diff --git a/03-functions-scope/01-function-basics/script.js b/03-functions-scope/01-function-basics/script.js
index 1eab8f6b..c71b3744 100644
--- a/03-functions-scope/01-function-basics/script.js
+++ b/03-functions-scope/01-function-basics/script.js
@@ -3,8 +3,7 @@ function sayHello() {
   console.log('Hello World');
 }
 
-// Invoke, execute or call a function
-sayHello();
+
 
 // Define a function with parameters
 function add(num1, num2) {