Tic-Tac-Toe Game
Build a Vue.js Tic-Tac-Toe with reactive turns, win detection, and reset controls
- Vue.js
- Reactivity
- Component Basics
- Event Handling
- Computed State
- Bulma
In this beginner Vue.js project, you will build a playable Tic-Tac-Toe game with an interactive 3×3 board. Each cell must respond to clicks, place the current player’s symbol, and prevent overwriting already chosen squares. The game must alternate turns automatically and display whose turn is active in a clear status area.
You will implement win detection that checks rows, columns, and diagonals after every move. When a player wins, the UI must announce the winner and lock the board so no extra moves can be made. If the board fills without a winner, the game must display a draw state. A reset button should restart the game instantly by resetting reactive data. Use Bulma to style the board, buttons, and status display with clean spacing and consistent UI.
What You Learn From This Game
This project teaches Vue’s reactive mindset through a simple, controlled game loop. You will manage a small state model (board cells, active player, game status) and render the UI directly from that state. Every click produces a predictable state transition: place a mark, evaluate the result, then switch turns or finish the game.
Tic-Tac-Toe also trains clean computed logic. Win detection is a focused exercise in deriving outcomes from reactive data, which is considered a core skill for building interactive UI components in Vue.
Prerequisites and What You Should Know
You should be comfortable: creating Vue components, binding data in templates, and handling user events. The project expects basic JavaScript logic and the ability to style a small UI using a framework.
- Vue 3 basics: template syntax, reactive state, and event binding
- Understanding of arrays and basic conditional logic in JavaScript
- Comfort using computed values for derived UI state
- Basic familiarity with Bulma classes for layout and buttons
- Ability to keep UI state consistent after user actions
Core Requirements for a Correct Game
A solid Tic-Tac-Toe implementation is judged by correctness and clarity. Moves must be valid, turns must switch consistently, and the game must end properly when a win or draw occurs. These requirements focus on reactive data flow rather than complex visuals.
| Requirement | Explanation |
| Clickable 3×3 board | Interactive cells confirm event handling and reactive rendering are wired correctly. |
| Turn switching logic | Automatic player changes demonstrate controlled state transitions after each move. |
| Win detection after every move | Checking outcomes continuously ensures the game ends at the correct moment. |
| Draw detection | Draw states show you handle full-board conditions without incorrect winner announcements. |
| Board lock on game end | Preventing additional moves keeps game rules intact and avoids confusing UI behavior. |
| Reset button using reactive state | Reset proves you can reinitialize state cleanly without manual DOM clearing. |
| Clear status UI | Status messaging makes the game understandable and improves the overall user experience. |
Tips for a Clean Vue Implementation
Keep the state model simple: an array of nine cells, a currentPlayer value, and a gameStatus that signals “playing,” “win,” or “draw.” Win detection works best as a pure function that receives the board and returns a winner or null. In Vue, computed values are a strong fit for derived status messages and end-of-game detection. Avoid spreading logic across the template - keep decision-making in script and render the result. When game logic stays pure, reactive rendering stays predictable.
- Use a single click handler that exits early if the cell is filled or the game ended
- Define winning line combinations once and reuse them for every check
- Render the status message from reactive state so it updates instantly
- Reset by rebuilding the board array, not by mutating each cell manually
- Use Bulma button and grid utilities to keep the UI clean with minimal custom CSS
- Test edge cases: last-move win, full-board draw, and rapid double clicks
By completing this project, you'll gain a solid understanding of building interactive game logic with Vue.js using reactive data and computed state. You will practice turn-based updates, win and draw detection, and clean resets, all rendered through a predictable Vue component. This foundation prepares you for larger Vue interfaces that rely on event-driven state and reusable UI components.