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Create a React-based Tic Tac Toe game.

Epoch 1: Setting up the Base

index.html

<!DOCTYPE html>

<head>

<title>React Tic Tac Toe</title>

</head>

<body>

</body>

</html>

index.js

import React from 'react';

import ReactDOM from 'react-dom';

import App from './App';

import './App.css';

ReactDOM.render(<App />, document.getElementById('root'));

App.css

.board-row {

display: flex;

}

.square {

width: 60px;

height: 60px;

border: 1px solid black;

text-align: center;

font-size: 24px;

cursor: pointer;

}

Epoch 2: Creating the Main Application Logic

App.js

import React, { useState } from 'react';

function Square(props) {

return (

{props.value}

</button>

);

}

function Board() {

// State for squares and which player's turn it is

const [squares, setSquares] = useState(Array(9).fill(null));

const [isXNext, setIsXNext] = useState(true);

// Handle click on squares

const handleClick = (i) => {

const squaresCopy = squares.slice();

// If square already filled or game won, return

if (squaresCopy[i] || calculateWinner(squares)) {

return;

}

// Mark square and switch player

squaresCopy[i] = isXNext ? 'X' : 'O';

setSquares(squaresCopy);

setIsXNext(!isXNext);

};

// Render square component

const renderSquare = (i) => {

return <Square value={squares[i]} onClick={() => handleClick(i)} />;

};

const winner = calculateWinner(squares);

let status;

if (winner) {

status = 'Winner: ' + winner;

} else {

status = 'Next player: ' + (isXNext ? 'X' : 'O');

}

return (

<div>

<div className="status">{status}</div>

{renderSquare(0)}

{renderSquare(1)}

{renderSquare(2)}

</div>

{renderSquare(3)}

{renderSquare(4)}

{renderSquare(5)}

</div>

{renderSquare(6)}

{renderSquare(7)}

{renderSquare(8)}

</div>

);

}

function App() {

return (

<h1>React Tic Tac Toe</h1>

</div>

);

}

export default App;

// Helper function to calculate game winner

function calculateWinner(squares) {

const lines = [

[0, 1, 2],

[3, 4, 5],

[6, 7, 8],

[0, 3, 6],

[1, 4, 7],

[2, 5, 8],

[0, 4, 8],

[2, 4, 6],

];

for (let i = 0; i < lines.length; i++) {

const [a, b, c] = lines[i];

if (squares[a] && squares[a] === squares[b] && squares[a] === squares[c]) {

return squares[a];

}

return null;

}

Epoch 3: Documenting the Code

Documentation of App.js:

Square Function Component:

Accepts properties, specifically value and an onClick function.

Returns a button with the given value, that will trigger the onClick function when clicked.

Board Function Component:

Maintains the state of the game, which includes the state of each square (squares) and which player's turn it is (isXNext).

handleClick function is called when a square is clicked, which will update the game's state accordingly.

renderSquare function returns a Square component with the appropriate properties set.

The game's status (which player's turn, or who won) is displayed above the game board.

App Function Component:

This is the top-level component, which renders the title and the Board component.

calculateWinner function:

A helper function that checks if there's a winner.

It checks all possible winning combinations and returns 'X', 'O', or null (no winner yet).

To play the game, you will click on the squares to place your move ('X' or 'O'). The game will display the current player's turn or the winner when the game concludes.

Remember, to run this, you will need a React environment. You can set up a new React project using Create React App and replace the given App.js, index.js, and index.html with the above code.

How do I run this as a react app in visual studio code

To run the given React app in Visual Studio Code (VS Code), follow these steps:

1. Setting Up the Environment:

Install Node.js and npm: If you haven't already, download and install Node.js, which comes with npm (Node Package Manager), from

here⁠

Install Visual Studio Code: If you haven't installed VS Code, get it from

here⁠

2. Setting Up the React App:

Open Terminal in VS Code: Open VS Code, then go to the terminal by selecting View > Terminal from the top menu, or simply press Ctrl + ~.

Create a New React App: In the terminal, type:

npx create-react-app my-tic-tac-toe

This will create a new React app named "my-tic-tac-toe".

Navigate to Your Project:

cd my-tic-tac-toe

Replace the Default App.js Content: Now, open the App.js file in the src directory of your project using the VS Code explorer. Replace its content with the React code you provided earlier.

3. Running the App:

Install Necessary CSS (Optional): If your code references any specific CSS files or other dependencies that aren't provided, make sure to add them. The code you provided references some CSS classes, so you might want to style them in the App.css file in the src directory.

Run the App: Go back to the terminal in VS Code and run:

npm start

This will start the development server. Shortly after, your default web browser should open with the Tic Tac Toe game running.

4. Additional Tips:

React Developer Tools: Consider adding the React Developer Tools extension to your browser. It's an invaluable tool for inspecting your React components and observing component state and props in real-time.

///

Overview



Compatible with your device

⁠

Adds React debugging tools to the Chrome Developer Tools. Created from revision 5eda682f8 on 10/3/2023.

React Developer Tools is a Chrome DevTools extension for the open-source React JavaScript library. It allows you to inspect the React component hierarchies in the Chrome Developer Tools.

You will get two new tabs in your Chrome DevTools: "⚛️ Components" and "⚛️ Profiler".

The Components tab shows you the root React components that were rendered on the page, as well as the subcomponents that they ended up rendering.

By selecting one of the components in the tree, you can inspect and edit its current props and state in the panel on the right. In the breadcrumbs you can inspect the selected component, the component that created it, the component that created that one, and so on.

If you inspect a React element on the page using the regular Elements tab, then switch over to the React tab, that element will be automatically selected in the React tree.

The Profiler tab allows you to record performance information.

This extension requires permissions to access the page's React tree, but it does not transmit any data remotely. It is fully open source, and you can find its source code at https://github.com/facebook/react/tree/master/packages/react-devtools-extensions.

///

VS Code Extensions: There are numerous extensions available for VS Code to enhance React development:

ES7 React/Redux/GraphQL/React-Native snippets: Provides you with code snippets for React.

Prettier - Code formatter: Automatically formats your code to keep it consistent.

Bracket Pair Colorizer: Helps visually match brackets.

Remember, each time you make changes to your React code, the browser will automatically refresh, showing the updated version of your app due to the hot-reloading feature of create-react-app. Happy coding!

Can I just move the files I made before

If you've already created some React files and just want to incorporate them into a new create-react-app setup, you can move them. Here's how to do it:

Set Up a New React Project (if not done already):

Want to print your doc?
This is not the way.

Try clicking the ⋯ next to your doc name or using a keyboard shortcut (

CtrlP

) instead.