« React + Vite + TS » : différence entre les versions
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| Ligne 117 : | Ligne 117 : | ||
== ClassName == | == ClassName == | ||
<filebox fn='App.tsx' lang='html'> | <filebox fn='App.tsx' lang='html'> | ||
<div className="container"></div> | <div id='d1' className="container"></div> | ||
</filebox> | </filebox> | ||
<filebox fn='App.css'> | <filebox fn='App.css'> | ||
#d1 { } | |||
.container { } | .container { } | ||
</filebox> | </filebox> | ||
Version du 27 octobre 2024 à 16:19
Links
Description
React is a library. It lets you put components together, but it doesn’t prescribe how to do routing and data fetching.
To build an entire app with React, we recommend a full-stack React framework like Next.js or Remix.
Command line
|
# create a new project (framework: React, variant: TypeScript) npm create vite@latest # install the packages npm install # run the project npm run dev |
Basic App
| public/index.html |
<body>
<!-- hosts the React application -->
<div id="root"></div>
<script type="module" src="/src/main.tsx"></script>
</body>
|
| src/main.tsx |
import { StrictMode } from 'react'
import { createRoot } from 'react-dom/client'
import { CssBaseline } from '@mui/material';
import './index.css'
createRoot(document.getElementById('root')!).render(
<StrictMode>
<CssBaseline />
<h1>My App</h1>
</StrictMode>,
)
|
| src/index.css |
body {
display: flex;
min-height: 100vh;
}
#root {
margin: 0 auto;
padding: 2rem;
text-align: center;
}
|
| package.json |
{
"name": "vite-project",
"private": true,
"version": "0.0.0",
"type": "module",
"scripts": {
"dev": "vite",
"build": "tsc -b && vite build",
"lint": "eslint .",
"preview": "vite preview"
},
"dependencies": {
"react": "^18.3.1",
"react-dom": "^18.3.1"
},
"devDependencies": {
"@eslint/js": "^9.13.0",
"@types/react": "^18.3.11",
"@types/react-dom": "^18.3.1",
"@vitejs/plugin-react": "^4.3.3",
"eslint": "^9.13.0",
"eslint-plugin-react-hooks": "^5.0.0",
"eslint-plugin-react-refresh": "^0.4.13",
"globals": "^15.11.0",
"typescript": "~5.6.2",
"typescript-eslint": "^8.10.0",
"vite": "^5.4.9"
}
}
|
Component
| src/App.tsx |
import { useState } from 'react'
import './App.css'
export default function App() {
const [count, setCount] = useState(0)
return (
<>
<h1>My App</h1>
</>
)
}
|
|
import App from './App.tsx' <App /> |
Styling
ClassName
| App.tsx |
<div id='d1' className="container"></div> |
| App.css |
#d1 { }
.container { }
|
Palette and Color
| Value | Color |
|---|---|
| primary | blue |
| secondary | violet |
| error | red |
| warning | orange |
| info | blue |
| success | green |
Hooks
State
Allows to store values.
|
|
// items is the variable used to store the items // setItems is a function to set a new value to items const [items, setItems] = useState<Item[]>([]); |
Effect
Allows to connect a component to an external system.
|
|
useEffect(() => {
const fetchData = async () => {
const result = await axios(`${API}?query=react`);
};
fetchData();
}, []);
|
Responding to Events
|
|
export default function Button() {
function handleClick() {
alert('You clicked me!');
}
return (
<button onClick={handleClick}>
Click me
</button>
);
}
|
Visual Studio Code
Debug
Install the Debugger for Firefox extension.
| .vscode/launch.json |
{
"version": "0.2.0",
"configurations": [
{
"name": "Launch Firefox against localhost",
"type": "firefox",
"request": "launch",
"url": "http://localhost:5173",
"webRoot": "${workspaceFolder}"
}
]
}
|
Naming convention
- file name: PascalCase
|
|
// use the filename as the component name, so PascalCase import App from './App.tsx' |
