badbuta/learn-reactjs-2023-context-api
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Initial codes and first try

Browse Source
This commit is contained in:
BadBUTA 2023-01-15 12:12:00 +08:00
parent a2fe160c84
commit 4bc2252e72
23 changed files with 9777 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
.gitignore vendored
View File

@ -130,3 +130,11 @@ dist
.yarn/install-state.gz
.pnp.*
# Partially from create-react-app
# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
# production
/build
# misc
.DS_Store

73
README.md
View File

@ -1,3 +1,72 @@
# learn-reactjs-2023-context-api
# Self-learning Project for ReactJS - Context API (2023)
This is a self-learning project for ReactJS - Context API in 2023
This is a self-learning project for ReactJS - Context API in 2023
This project was bootstrapped with [Create React App](https://github.com/facebook/create-react-app).
# Key information
## NPM or Yarn?
This project use `yarn`
## Before you start
After cloning this project to your local environment, run install:
`yarn install`
## Available Scripts you need to know
- `yarn start`
- `yarn test`
- `yarn run build`
- `yarn run eject`
Note: See below section of the explaination
# Study Notes
## Online References
---
## Available Scripts - Explain
In the project directory, you can run:
### `yarn start`
Runs the app in the development mode.\
Open [http://localhost:3000](http://localhost:3000) to view it in the browser.
The page will reload if you make edits.\
You will also see any lint errors in the console.
### `yarn test`
Launches the test runner in the interactive watch mode.\
See the section about [running tests](https://facebook.github.io/create-react-app/docs/running-tests) for more information.
### `yarn run build`
Builds the app for production to the `build` folder.\
It correctly bundles React in production mode and optimizes the build for the best performance.
The build is minified and the filenames include the hashes.\
Your app is ready to be deployed!
See the section about [deployment](https://facebook.github.io/create-react-app/docs/deployment) for more information.
### `yarn run eject`
**Note: this is a one-way operation. Once you `eject`, you can’t go back!**
If you aren’t satisfied with the build tool and configuration choices, you can `eject` at any time. This command will remove the single build dependency from your project.
Instead, it will copy all the configuration files and the transitive dependencies (webpack, Babel, ESLint, etc) right into your project so you have full control over them. All of the commands except `eject` will still work, but they will point to the copied scripts so you can tweak them. At this point you’re on your own.
You don’t have to ever use `eject`. The curated feature set is suitable for small and middle deployments, and you shouldn’t feel obligated to use this feature. However we understand that this tool wouldn’t be useful if you couldn’t customize it when you are ready for it.

45
package.json Normal file
View File

@ -0,0 +1,45 @@
{
"name": "try1",
"version": "0.1.0",
"private": true,
"dependencies": {
"@testing-library/jest-dom": "^5.16.5",
"@testing-library/react": "^13.4.0",
"@testing-library/user-event": "^13.5.0",
"@types/jest": "^27.5.2",
"@types/node": "^16.18.11",
"@types/react": "^18.0.26",
"@types/react-dom": "^18.0.10",
"mini-css": "^1.0.3",
"mini.css": "^3.0.1",
"react": "^18.2.0",
"react-dom": "^18.2.0",
"react-scripts": "5.0.1",
"typescript": "^4.9.4",
"web-vitals": "^2.1.4"
},
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test",
"eject": "react-scripts eject"
},
"eslintConfig": {
"extends": [
"react-app",
"react-app/jest"
]
},
"browserslist": {
"production": [
">0.2%",
"not dead",
"not op_mini all"
],
"development": [
"last 1 chrome version",
"last 1 firefox version",
"last 1 safari version"
]
}
}

BIN
public/favicon.ico Normal file
View File

Binary file not shown.
Side by Side

After

Width:  |  Height:  |  Size: 3.8 KiB

43
public/index.html Normal file
View File

@ -0,0 +1,43 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<link rel="icon" href="%PUBLIC_URL%/favicon.ico" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta name="theme-color" content="#000000" />
<meta
name="description"
content="Web site created using create-react-app"
/>
<link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
<!--
manifest.json provides metadata used when your web app is installed on a
user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
-->
<link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
<!--
Notice the use of %PUBLIC_URL% in the tags above.
It will be replaced with the URL of the `public` folder during the build.
Only files inside the `public` folder can be referenced from the HTML.
Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
work correctly both with client-side routing and a non-root public URL.
Learn how to configure a non-root public URL by running `npm run build`.
-->
<title>React App</title>
</head>
<body>
<noscript>You need to enable JavaScript to run this app.</noscript>
<div id="root"></div>
<!--
This HTML file is a template.
If you open it directly in the browser, you will see an empty page.
You can add webfonts, meta tags, or analytics to this file.
The build step will place the bundled scripts into the <body> tag.
To begin the development, run `npm start` or `yarn start`.
To create a production bundle, use `npm run build` or `yarn build`.
-->
</body>
</html>

BIN
public/logo192.png Normal file
View File

Binary file not shown.
Side by Side

After

Width:  |  Height:  |  Size: 5.2 KiB

BIN
public/logo512.png Normal file
View File

Binary file not shown.
Side by Side

After

Width:  |  Height:  |  Size: 9.4 KiB

25
public/manifest.json Normal file
View File

@ -0,0 +1,25 @@
{
"short_name": "React App",
"name": "Create React App Sample",
"icons": [
{
"src": "favicon.ico",
"sizes": "64x64 32x32 24x24 16x16",
"type": "image/x-icon"
},
{
"src": "logo192.png",
"type": "image/png",
"sizes": "192x192"
},
{
"src": "logo512.png",
"type": "image/png",
"sizes": "512x512"
}
],
"start_url": ".",
"display": "standalone",
"theme_color": "#000000",
"background_color": "#ffffff"
}

3
public/robots.txt Normal file
View File

@ -0,0 +1,3 @@
# https://www.robotstxt.org/robotstxt.html
User-agent: *
Disallow:

0
src/App.css Normal file
View File

9
src/App.test.tsx Normal file
View File

@ -0,0 +1,9 @@
import React from 'react';
import { render, screen } from '@testing-library/react';
import App from './App';
test('renders learn react link', () => {
render(<App />);
const linkElement = screen.getByText(/learn react/i);
expect(linkElement).toBeInTheDocument();
});

53
src/App.tsx Normal file
View File

@ -0,0 +1,53 @@
import React, { Component } from 'react';
import { AppContext, AppState } from './context/AppContext';
import { Counter, Hello } from './components/TestA';
import { CompB, CompC, CompD } from './components/TestB';
import './App.css';
// const sampleContextProp = {
// name: "Fong",
// value: 123,
// }
class App extends Component<any, AppState> {
constructor(props: any) {
super(props);
this.state = {
test: {
name: "Fong",
value: 123,
}
};
}
update = (appState: any) => {
this.setState(prevState => (appState))
// let thePrevstate;
// this.setState(prevState => {
// thePrevstate = prevState;
// return appState;
// });
// return thePrevstate;
};
render() {
const { update } = this;
const appState = this.state;
return (
<div className="container">
<AppContext.Provider value={{ appState, update }} >
<Counter header="Test Counter" />
<Hello name='ohno' />
<CompB></CompB>
<CompC></CompC>
<CompD></CompD>
</AppContext.Provider>
</div>
);
}
}
export default App;

65
src/components/TestA.tsx Normal file
View File

@ -0,0 +1,65 @@
import React, { Component } from 'react';
type CounterProps = {
header: string;
};
type CounterState = {
value: number;
};
class Counter extends Component<CounterProps, CounterState> {
// constructor(props: CounterProps) {
// super(props);
// this.state = {
// value: 0,
// }
// }
state: CounterState = {
value: 0,
};
incByOne = (
event: React.MouseEvent<HTMLButtonElement, MouseEvent>,
) => {
this.setState(prevState => ({
value: prevState.value + 1
}));
}
render() {
const { header } = this.props;
const { value } = this.state;
return (
<div className="card">
<h3>{header}</h3>
<div className='container'>
<div className='row'>
<div className='col-sm-10'>Current Value: {value}</div>
<div className='col-sm-2'><button onClick={this.incByOne}>+1</button></div>
</div>
</div>
</div>
);
}
}
type HelloProps = {
name: string;
}
class Hello extends React.Component<HelloProps> {
render() {
const { name } = this.props;
return (
<div className="card">
<h3>Hello Comp</h3>
<p>Prop:Name = {name}</p>
</div >
)
}
}
export { Counter, Hello };

89
src/components/TestB.tsx Normal file
View File

@ -0,0 +1,89 @@
import React, { Component } from 'react';
import { AppContext } from '../context/AppContext';
// import { AppContextType } from '../context/AppContext';
// Class Component
class CompB extends Component {
// Set the context
static contextType = AppContext;
context!: React.ContextType<typeof AppContext>;
setCtxClicked = () => {
const { update } = this.context!;
update({
test:{
value: 9,
}
})
}
render() {
const { appState } = this.context!;
console.log("-------PROP----");
console.log(this.props);
console.log("-------State----");
console.log(this.state);
// console.log("-------Context----");
return (
<div className="container card">
<h4>Component: CompB</h4>
<p>Ctx:Name = {appState!.test.name}</p>
<p>Ctx:Value = {appState!.test.value}</p>
<button onClick={this.setCtxClicked}>Set Ctx</button>
<Toolbar pTest="Set me props" />
</div>
);
}
}
function Toolbar(props: any) {
// context via Hooks
// Note: 'useContext' should only be used in functional component, not class comp.
const ctx = React.useContext(AppContext);
return (
<div className="card shadowed">
<h5>Component: ToolBar</h5>
<p>Prop:pTest = {props.pTest}</p>
<p>Ctx:Name = {ctx!.appState!.test.name}</p>
<p>Ctx:Value = {ctx!.appState!.test.value}</p>
</div>
);
}
// Class Component
// context via Consumer
class CompC extends Component {
render() {
return (
<AppContext.Consumer>
{value => (
<div className="card">
<h5>Component: CompC</h5>
<p>value:Name = {value!.appState!.test.name}</p>
<p>value:Value = {value!.appState!.test.value}</p>
</div >
)}
</AppContext.Consumer>
)
}
}
// Class Component
// context via Consumer
class CompD extends Component {
context!: React.ContextType<typeof AppContext>;
render() {
return (
<div className="card">
<h5>Component: CompD</h5>
<p>value:Name = {this.context!.appState!.test.name}</p>
<p>value:Value = {this.context!.appState!.test.value}</p>
</div >
)
}
}
CompD.contextType = AppContext;
export { CompB, CompC, CompD };

21
src/context/AppContext.ts Normal file
View File

@ -0,0 +1,21 @@
import React from 'react';
export type AppState = {
test: {
name?: string,
value?: number
}
};
export type AppContextType = {
appState?: AppState,
update: (appState: any) => void;
}
export const AppContext = React.createContext<AppContextType | null>(null);
// export const AppContext = React.createContext<AppContextType>({
// appState: {},
// update: (appState: any):void => {}
// });
AppContext.displayName = "TheAppContext";

1
src/index.css Normal file
View File

@ -0,0 +1 @@
@import '../node_modules/mini.css/dist/mini-default.min.css';

19
src/index.tsx Normal file
View File

@ -0,0 +1,19 @@
import React from 'react';
import ReactDOM from 'react-dom/client';
import './index.css';
import App from './App';
import reportWebVitals from './reportWebVitals';
const root = ReactDOM.createRoot(
document.getElementById('root') as HTMLElement
);
root.render(
<React.StrictMode>
<App />
</React.StrictMode>
);
// If you want to start measuring performance in your app, pass a function
// to log results (for example: reportWebVitals(console.log))
// or send to an analytics endpoint. Learn more: https://bit.ly/CRA-vitals
reportWebVitals();

1
src/logo.svg Normal file
View File

@ -0,0 +1 @@
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 841.9 595.3"><g fill="#61DAFB"><path d="M666.3 296.5c0-32.5-40.7-63.3-103.1-82.4 14.4-63.6 8-114.2-20.2-130.4-6.5-3.8-14.1-5.6-22.4-5.6v22.3c4.6 0 8.3.9 11.4 2.6 13.6 7.8 19.5 37.5 14.9 75.7-1.1 9.4-2.9 19.3-5.1 29.4-19.6-4.8-41-8.5-63.5-10.9-13.5-18.5-27.5-35.3-41.6-50 32.6-30.3 63.2-46.9 84-46.9V78c-27.5 0-63.5 19.6-99.9 53.6-36.4-33.8-72.4-53.2-99.9-53.2v22.3c20.7 0 51.4 16.5 84 46.6-14 14.7-28 31.4-41.3 49.9-22.6 2.4-44 6.1-63.6 11-2.3-10-4-19.7-5.2-29-4.7-38.2 1.1-67.9 14.6-75.8 3-1.8 6.9-2.6 11.5-2.6V78.5c-8.4 0-16 1.8-22.6 5.6-28.1 16.2-34.4 66.7-19.9 130.1-62.2 19.2-102.7 49.9-102.7 82.3 0 32.5 40.7 63.3 103.1 82.4-14.4 63.6-8 114.2 20.2 130.4 6.5 3.8 14.1 5.6 22.5 5.6 27.5 0 63.5-19.6 99.9-53.6 36.4 33.8 72.4 53.2 99.9 53.2 8.4 0 16-1.8 22.6-5.6 28.1-16.2 34.4-66.7 19.9-130.1 62-19.1 102.5-49.9 102.5-82.3zm-130.2-66.7c-3.7 12.9-8.3 26.2-13.5 39.5-4.1-8-8.4-16-13.1-24-4.6-8-9.5-15.8-14.4-23.4 14.2 2.1 27.9 4.7 41 7.9zm-45.8 106.5c-7.8 13.5-15.8 26.3-24.1 38.2-14.9 1.3-30 2-45.2 2-15.1 0-30.2-.7-45-1.9-8.3-11.9-16.4-24.6-24.2-38-7.6-13.1-14.5-26.4-20.8-39.8 6.2-13.4 13.2-26.8 20.7-39.9 7.8-13.5 15.8-26.3 24.1-38.2 14.9-1.3 30-2 45.2-2 15.1 0 30.2.7 45 1.9 8.3 11.9 16.4 24.6 24.2 38 7.6 13.1 14.5 26.4 20.8 39.8-6.3 13.4-13.2 26.8-20.7 39.9zm32.3-13c5.4 13.4 10 26.8 13.8 39.8-13.1 3.2-26.9 5.9-41.2 8 4.9-7.7 9.8-15.6 14.4-23.7 4.6-8 8.9-16.1 13-24.1zM421.2 430c-9.3-9.6-18.6-20.3-27.8-32 9 .4 18.2.7 27.5.7 9.4 0 18.7-.2 27.8-.7-9 11.7-18.3 22.4-27.5 32zm-74.4-58.9c-14.2-2.1-27.9-4.7-41-7.9 3.7-12.9 8.3-26.2 13.5-39.5 4.1 8 8.4 16 13.1 24 4.7 8 9.5 15.8 14.4 23.4zM420.7 163c9.3 9.6 18.6 20.3 27.8 32-9-.4-18.2-.7-27.5-.7-9.4 0-18.7.2-27.8.7 9-11.7 18.3-22.4 27.5-32zm-74 58.9c-4.9 7.7-9.8 15.6-14.4 23.7-4.6 8-8.9 16-13 24-5.4-13.4-10-26.8-13.8-39.8 13.1-3.1 26.9-5.8 41.2-7.9zm-90.5 125.2c-35.4-15.1-58.3-34.9-58.3-50.6 0-15.7 22.9-35.6 58.3-50.6 8.6-3.7 18-7 27.7-10.1 5.7 19.6 13.2 40 22.5 60.9-9.2 20.8-16.6 41.1-22.2 60.6-9.9-3.1-19.3-6.5-28-10.2zM310 490c-13.6-7.8-19.5-37.5-14.9-75.7 1.1-9.4 2.9-19.3 5.1-29.4 19.6 4.8 41 8.5 63.5 10.9 13.5 18.5 27.5 35.3 41.6 50-32.6 30.3-63.2 46.9-84 46.9-4.5-.1-8.3-1-11.3-2.7zm237.2-76.2c4.7 38.2-1.1 67.9-14.6 75.8-3 1.8-6.9 2.6-11.5 2.6-20.7 0-51.4-16.5-84-46.6 14-14.7 28-31.4 41.3-49.9 22.6-2.4 44-6.1 63.6-11 2.3 10.1 4.1 19.8 5.2 29.1zm38.5-66.7c-8.6 3.7-18 7-27.7 10.1-5.7-19.6-13.2-40-22.5-60.9 9.2-20.8 16.6-41.1 22.2-60.6 9.9 3.1 19.3 6.5 28.1 10.2 35.4 15.1 58.3 34.9 58.3 50.6-.1 15.7-23 35.6-58.4 50.6zM320.8 78.4z"/><circle cx="420.9" cy="296.5" r="45.7"/><path d="M520.5 78.1z"/></g></svg>
Side by Side

After

Width:  |  Height:  |  Size: 2.6 KiB

1
src/react-app-env.d.ts vendored Normal file
View File

@ -0,0 +1 @@
/// <reference types="react-scripts" />

15
src/reportWebVitals.ts Normal file
View File

@ -0,0 +1,15 @@
import { ReportHandler } from 'web-vitals';
const reportWebVitals = (onPerfEntry?: ReportHandler) => {
if (onPerfEntry && onPerfEntry instanceof Function) {
import('web-vitals').then(({ getCLS, getFID, getFCP, getLCP, getTTFB }) => {
getCLS(onPerfEntry);
getFID(onPerfEntry);
getFCP(onPerfEntry);
getLCP(onPerfEntry);
getTTFB(onPerfEntry);
});
}
};
export default reportWebVitals;

5
src/setupTests.ts Normal file
View File

@ -0,0 +1,5 @@
// jest-dom adds custom jest matchers for asserting on DOM nodes.
// allows you to do things like:
// expect(element).toHaveTextContent(/react/i)
// learn more: https://github.com/testing-library/jest-dom
import '@testing-library/jest-dom';

26
tsconfig.json Normal file
View File

@ -0,0 +1,26 @@
{
"compilerOptions": {
"target": "es5",
"lib": [
"dom",
"dom.iterable",
"esnext"
],
"allowJs": true,
"skipLibCheck": true,
"esModuleInterop": true,
"allowSyntheticDefaultImports": true,
"strict": true,
"forceConsistentCasingInFileNames": true,
"noFallthroughCasesInSwitch": true,
"module": "esnext",
"moduleResolution": "node",
"resolveJsonModule": true,
"isolatedModules": true,
"noEmit": true,
"jsx": "react-jsx"
},
"include": [
"src"
]
}

9277
yarn.lock Normal file
View File

File diff suppressed because it is too large Load Diff