Blog
Building a Rock Paper Scissors Game in JavaScript
Building a Rock Paper Scissors Game in JavaScript ✊📄✂️
Rock Paper Scissors is a timeless hand game that is simple to play yet engaging. It’s also a great beginner-friendly project to help you practice JavaScript fundamentals while working on an interactive web-based game.
In this project, you’ll build a player vs. computer game where the user selects Rock, Paper, or Scissors, and the computer randomly picks an option. The game then determines the winner instantly and updates the UI dynamically.
By working on this project, you will get hands-on experience with DOM manipulation, event handling, conditional logic, and random number generation—all key concepts for JavaScript development.
🔹 Key Features of the Rock Paper Scissors Game
✅ User vs. Computer Gameplay – The player selects an option, and the computer makes a random choice.
✅ Instant Win/Loss/Tie Calculation – The game evaluates both choices and displays the result dynamically.
✅ Interactive UI Updates – The game visually updates based on the player’s and computer’s choices.
✅ Restart Option – Players can reset the game and play again.
🔹 JavaScript Concepts Covered
This project covers a variety of JavaScript concepts, including:
🎯 Event Listeners – Detect and handle user clicks on Rock, Paper, or Scissors.
🎲 Random Number Generation – Simulate the computer’s choice randomly.
📌 Conditional Statements (if-else) – Compare choices and determine the winner.
🖥️ DOM Manipulation – Update the game UI dynamically based on the game result.
🔄 Functions – Write reusable code to keep the game logic organized.
🔹 How the Game Works
1️⃣ The player clicks on one of three buttons: Rock, Paper, or Scissors.
2️⃣ The computer randomly selects one of the three choices.
3️⃣ The game logic compares the two choices and determines the result based on these rules:
- Rock beats Scissors 🏆
- Scissors beats Paper ✂️
- Paper beats Rock 📄
4️⃣ The result (Win, Lose, or Draw) is displayed instantly on the screen.
5️⃣ Players can click a restart button to reset the game and play again.
🔹 Step-by-Step Breakdown of the Game Logic
1️⃣ Setting Up the HTML Structure
- Create a simple HTML layout with three buttons for Rock, Paper, and Scissors.
- Include a display section to show the player’s and computer’s choices.
- Add an area for displaying the game result.
2️⃣ Styling the Game with CSS
- Use CSS to style the game layout, buttons, and result display.
- Add hover effects to buttons for an interactive feel.
3️⃣ Writing the Game Logic in JavaScript
Handling User Input with Event Listeners
- Add click event listeners to each button to capture the player’s choice.
- Store the player’s selection and pass it to the game logic.
Generating the Computer’s Choice Randomly
- Use Math.random() to pick a random number between 0 and 2.
- Map the random number to one of the three choices (Rock, Paper, or Scissors).
Determining the Winner with Conditional Statements
- Compare the player’s choice and the computer’s choice using if-else statements.
- Define winning conditions and update the result accordingly.
Updating the UI Dynamically
- Display the player’s and computer’s choices in the UI.
- Show the result (Win, Lose, or Draw) instantly.
- Highlight the winning choice to enhance the user experience.
Adding a Restart Button
- Implement a restart button that resets the game for a new round.
- Clear previous choices and results to allow smooth gameplay.
🔹 Why Build a Rock Paper Scissors Game?
This project is an excellent starting point for JavaScript beginners because it covers essential programming concepts like:
✅ User interaction – Handling button clicks and updating the UI dynamically.
✅ Conditional logic – Using if-else statements to implement game rules.
✅ Randomization – Applying Math.random() to generate unpredictable outcomes.
✅ Modular programming – Organizing code into reusable functions.
By the time you finish this project, you’ll have a solid understanding of JavaScript fundamentals and a fun, playable game to showcase your skills!
🎯 Final Thoughts
Building a Rock Paper Scissors game in JavaScript is a fantastic way to practice coding logic, event handling, and UI updates in a fun and interactive way. It’s an easy yet rewarding project that strengthens your JavaScript skills and boosts your confidence as a web developer.
💻 Ready to code? Open your favorite text editor and start building your own Rock Paper Scissors game today! 🚀🎮
Join Now & Start Coding! 
