tapascript · atapas · Mar 6, 2025 · Mar 6, 2025
diff --git a/README.md b/README.md
@@ -30,4 +30,5 @@ I am an independent educator and open-source enthusiast who creates meaningful p
 - **`Day 07: Building Beginner-Friendly JavaScript Projects`** - [Watch Video](https://youtu.be/fydbEttef04) || [Source Code](https://github.com/tapascript/40-days-of-javascript/blob/main/day-07/README.md)
 
 ### Module 2
-- **`Day 08: Mastering JavaScript Execution Context Visually`** - [Watch Video](https://youtu.be/ylx5F7hbzVQ) || [Source Code](https://github.com/tapascript/40-days-of-javascript/blob/main/day-08/README.md)
+- **`Day 08: Mastering JavaScript Execution Context Visually`** - [Watch Video](https://youtu.be/ylx5F7hbzVQ) || [Source Code](https://github.com/tapascript/40-days-of-javascript/blob/main/day-08/README.md)
+- **`Day 09: Mastering Temporal Dead Zone and Hoisting`** - [Watch Video](https://youtu.be/OqMxh1QdYEg) || [Source Code](https://github.com/tapascript/40-days-of-javascript/blob/main/day-09/README.md)
diff --git a/day-09/README.md b/day-09/README.md
@@ -0,0 +1,33 @@
+# Day 09 - 40 Days of JavaScript
+
+## **🎯 Goal of This Lesson**
+
+- ✅ Welcome to Module 2
+- ✅ Intro
+- ✅ Misconception About Hoisting
+- ✅ Variable Hoisting
+- ✅ Hoisting and let and const
+- ✅ Temporal Dead Zone(TDZ)
+- ✅ Functional Hoisting
+- ✅ Hoisting and Function As an Expression
+- ✅ Task and What’s Next?
+
+## 🫶 Support
+Your support means a lot.
+
+- Please SUBSCRIBE to [tapaScript YouTube Channel](https://youtube.com/tapasadhikary) if not done already. A Big Thank You!
+- Liked my work? It takes months of hard work to create quality content and present it to you. You can show your support to me with a STAR(⭐) to this repository.
+
+    > Many Thanks to all the `Stargazers` who have supported this project with stars(⭐)
+
+### 🤝 Sponsor My Work
+I am an independent educator and open-source enthusiast who creates meaningful projects to teach programming on my YouTube Channel. **You can support my work by [Sponsoring me on GitHub](https://github.com/sponsors/atapas) or [Buy Me a Cofee](https://buymeacoffee.com/tapasadhikary)**.
+
+## Video
+Here is the video for you to go through and learn:
+
+[![day-09](./banner.png)](https://youtu.be/OqMxh1QdYEg "Video")
+
+## **👩‍💻 🧑‍💻 Assignment Tasks**
+
+Please find the task assignments in the [Task File](./task.md).
diff --git a/day-09/banner.png b/day-09/banner.png
diff --git a/day-09/feh.js b/day-09/feh.js
@@ -0,0 +1,5 @@
+test();
+
+var test = function() {
+  console.log('I am being tested');
+}
diff --git a/day-09/fh.js b/day-09/fh.js
@@ -0,0 +1,14 @@
+// Invoke a function, chase()
+chase();
+
+// Declare a function, chase()
+function chase() {
+  console.log('Tom chases Jerry!');
+  // Invoke a function, caught();
+  caught();
+}
+
+// Declare a function, caught()
+function caught() {
+  console.log('Tom caught Jerry :(')
+}
diff --git a/day-09/index.html b/day-09/index.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Hoisting</title>
+    <script defer src="./feh.js"></script>
+</head>
+<body>
+    <h1>Welcome to the <u>Day 09</u> of "40 Days of JavaScript!"</h1>
+</body>
+</html>
diff --git a/day-09/task.md b/day-09/task.md
@@ -0,0 +1,9 @@
+# Tasks
+Please complete the following tasks and post them on the tapaScript Discord under "40 Days of JavaScript".
+
+> **DO NOT USE AI to FIND ANSWERS**. If you are stuck, let's discuss it on DISCORD and learn. Also, please note that none of the answers need you to create any UI. Just focus on the logic building and print the output on the browser console.
+
+## 1. Expian Temporal Dead Zone by creating 3 variables in side a block. Post the code as your answer.
+
+## 2. Explain Variable and Function Hoisting with Example. Post the code as your answer.
+
diff --git a/day-09/vh.js b/day-09/vh.js
@@ -0,0 +1,44 @@
+// With var
+{
+console.log('name is ', name);
+var name = "tom";
+name = 'tom';
+console.log('name is ', name);
+}
+
+// With let
+{
+    console.log('name is ', name);
+    let name = "tom";
+    name = 'tom';
+    console.log('name is ', name);
+}
+
+// With const
+{
+    console.log('name is ', name);
+    const name = "tom";
+    //name = 'tom';
+    console.log('name is ', name);
+}
+
+
+// Temporal Dead Zone(TDZ)
+
+// TDZ = an area where you can not access a variable until it is initialized
+
+// ReferenceError
+
+{
+    // === name variable's TDZ started here
+    //
+    //console.log(name); // RerenceError
+    //
+    console.log(address); // RerenceError
+    let address = "bangalore";
+    //
+    let name = "tapaScript" // === name variable's TDZ ends here
+    console.log(name);
+    //
+    //
+}