react : concat, slice, map, spread(...), filter

This commit is contained in:
kim
2021-02-03 15:09:15 +09:00
parent dbbdb7d6d8
commit efef869860
19 changed files with 16636 additions and 4 deletions

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[{"C:\\Users\\Woojin\\Desktop\\study\\Study\\react-springboot\\my-app\\src\\index.js":"1","C:\\Users\\Woojin\\Desktop\\study\\Study\\react-springboot\\my-app\\src\\reportWebVitals.js":"2","C:\\Users\\Woojin\\Desktop\\study\\Study\\react-springboot\\my-app\\src\\App.js":"3"},{"size":500,"mtime":499162500000,"results":"4","hashOfConfig":"5"},{"size":362,"mtime":1612328420362,"results":"6","hashOfConfig":"5"},{"size":756,"mtime":1612332221813,"results":"7","hashOfConfig":"5"},{"filePath":"8","messages":"9","errorCount":0,"warningCount":0,"fixableErrorCount":0,"fixableWarningCount":0,"usedDeprecatedRules":"10"},"11g3wnd",{"filePath":"11","messages":"12","errorCount":0,"warningCount":0,"fixableErrorCount":0,"fixableWarningCount":0},{"filePath":"13","messages":"14","errorCount":0,"warningCount":0,"fixableErrorCount":0,"fixableWarningCount":0},"C:\\Users\\Woojin\\Desktop\\study\\Study\\react-springboot\\my-app\\src\\index.js",[],["15","16"],"C:\\Users\\Woojin\\Desktop\\study\\Study\\react-springboot\\my-app\\src\\reportWebVitals.js",[],"C:\\Users\\Woojin\\Desktop\\study\\Study\\react-springboot\\my-app\\src\\App.js",[],{"ruleId":"17","replacedBy":"18"},{"ruleId":"19","replacedBy":"20"},"no-native-reassign",["21"],"no-negated-in-lhs",["22"],"no-global-assign","no-unsafe-negation"]

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react-springboot/my-app/.gitignore vendored Normal file
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# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
# dependencies
/node_modules
/.pnp
.pnp.js
# testing
/coverage
# production
/build
# misc
.DS_Store
.env.local
.env.development.local
.env.test.local
.env.production.local
npm-debug.log*
yarn-debug.log*
yarn-error.log*

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{
"singleQuote": true,
"semi": true,
"tabWidth": 2,
"trailingComma": "all",
"printWidth": 80
}

16381
react-springboot/my-app/package-lock.json generated Normal file

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{
"name": "my-app",
"version": "0.1.0",
"private": true,
"dependencies": {
"@testing-library/jest-dom": "^5.11.9",
"@testing-library/react": "^11.2.5",
"@testing-library/user-event": "^12.6.3",
"react": "^17.0.1",
"react-dom": "^17.0.1",
"react-scripts": "4.0.1",
"web-vitals": "^0.2.4"
},
"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"
]
}
}

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<!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>

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{
"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"
}

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# https://www.robotstxt.org/robotstxt.html
User-agent: *
Disallow:

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.box-style {
color: blue;
}

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react-springboot/my-app/src/App.js vendored Normal file
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import './App.css';
let a = 10;
const b = 20;
function App() {
const mystyle = {
color: 'red',
};
let list = [1, 2, 3];
const users = [
{ id: 1, name: 'kim', phone: '1234' },
{ id: 2, name: 'lee', phone: '1234' },
{ id: 3, name: 'choi', phone: '1234' },
];
const update = {
id: 2,
name: 'park',
};
const newUser = users.map((u) =>
u.id === update.id ? { ...u, ...update } : u,
);
console.log(newUser);
return (
<>
<div style={mystyle}>안녕{a === 10 ? '10입니다.' : '10이 아닙니다'}</div>
<h1 className="box-style">제목{b === 20 && '20입니다.'}</h1>
<div>
{list.map((n) => (
<h1>n</h1>
))}
</div>
</>
);
}
export default App;

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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();
});

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body {
margin: 0;
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
sans-serif;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
}
code {
font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
monospace;
}

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react-springboot/my-app/src/index.js vendored Normal file
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import React from 'react';
import ReactDOM from 'react-dom';
import './index.css';
import App from './App';
import reportWebVitals from './reportWebVitals';
ReactDOM.render(
<React.StrictMode>
<App />
</React.StrictMode>,
document.getElementById('root')
);
// 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();

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const reportWebVitals = onPerfEntry => {
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;

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// 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';