Rock Paper Scissors

This project is part of The Odin Project's Foundations Course, where the goal is to implement the classic Rock–Paper–Scissors game using JavaScript. The challenge focuses on control flow, loops, and functions — while also practicing clean code organization and user interaction through the browser.

For more information, check out The Odin Project.

You can play the latest version on GitHub Pages here.

My Approach

• Game Flow:

  • Start with a confirm() prompt to ask if the user wants to play.
  • Game runs in a loop of 5 rounds, with scores tracked each round.
  • At the end, display the overall winner and ask if the user wants to play again.

• Input Validation:

  • Ensures user can only choose "rock", "paper", or "scissors".
  • Handles cancel, empty input, and invalid entries gracefully.

• Code Organization:

  • playGame() → main function managing rounds and score tracking.
  • getHumanChoice() → validates and returns user input.
  • getComputerChoice() → random choice generator.
  • playRound() → encapsulates game logic (who wins the round).
  • liveScoreBoard() and displayResult() → handle user feedback.

• Replay System:

  • After finishing, players can instantly replay without reloading the page.

Important

Technical Highlights:

• Modular, single-responsibility functions for readability.
• Input sanitization and error handling (null, invalid input, empty strings).
• Structured loops to manage game flow.

Note

If you’re following The Odin Project,
feel free to adapt this version, improve it with UI buttons, or extend it for extra features. Soon this repo will be updated with UI instead of using prompts (otherwise the prompts experience is actually nice)