react : concat, slice, map, spread(...), filter
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react-springboot/my-app/.eslintcache
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react-springboot/my-app/.eslintcache
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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
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react-springboot/my-app/.gitignore
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# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
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# dependencies
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/node_modules
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/.pnp
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.pnp.js
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# testing
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/coverage
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# production
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/build
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# misc
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.DS_Store
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.env.local
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.env.development.local
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.env.test.local
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.env.production.local
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npm-debug.log*
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yarn-debug.log*
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yarn-error.log*
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react-springboot/my-app/.prettierrc
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react-springboot/my-app/.prettierrc
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{
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"singleQuote": true,
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"semi": true,
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"tabWidth": 2,
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"trailingComma": "all",
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"printWidth": 80
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}
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16381
react-springboot/my-app/package-lock.json
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16381
react-springboot/my-app/package-lock.json
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react-springboot/my-app/package.json
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react-springboot/my-app/package.json
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{
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"name": "my-app",
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"version": "0.1.0",
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"private": true,
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"dependencies": {
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"@testing-library/jest-dom": "^5.11.9",
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"@testing-library/react": "^11.2.5",
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"@testing-library/user-event": "^12.6.3",
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"react": "^17.0.1",
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"react-dom": "^17.0.1",
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"react-scripts": "4.0.1",
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"web-vitals": "^0.2.4"
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},
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"scripts": {
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"start": "react-scripts start",
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"build": "react-scripts build",
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"test": "react-scripts test",
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"eject": "react-scripts eject"
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},
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"eslintConfig": {
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"extends": [
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"react-app",
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"react-app/jest"
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]
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},
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"browserslist": {
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"production": [
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">0.2%",
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"not dead",
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"not op_mini all"
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],
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"development": [
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"last 1 chrome version",
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"last 1 firefox version",
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"last 1 safari version"
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]
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}
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}
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BIN
react-springboot/my-app/public/favicon.ico
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react-springboot/my-app/public/favicon.ico
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react-springboot/my-app/public/index.html
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react-springboot/my-app/public/index.html
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8" />
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<link rel="icon" href="%PUBLIC_URL%/favicon.ico" />
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<meta name="viewport" content="width=device-width, initial-scale=1" />
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<meta name="theme-color" content="#000000" />
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<meta
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name="description"
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content="Web site created using create-react-app"
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/>
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<link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
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<!--
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manifest.json provides metadata used when your web app is installed on a
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user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
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-->
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<link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
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<!--
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Notice the use of %PUBLIC_URL% in the tags above.
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It will be replaced with the URL of the `public` folder during the build.
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Only files inside the `public` folder can be referenced from the HTML.
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Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
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work correctly both with client-side routing and a non-root public URL.
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Learn how to configure a non-root public URL by running `npm run build`.
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-->
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<title>React App</title>
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</head>
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<body>
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<noscript>You need to enable JavaScript to run this app.</noscript>
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<div id="root"></div>
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<!--
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This HTML file is a template.
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If you open it directly in the browser, you will see an empty page.
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You can add webfonts, meta tags, or analytics to this file.
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The build step will place the bundled scripts into the <body> tag.
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To begin the development, run `npm start` or `yarn start`.
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To create a production bundle, use `npm run build` or `yarn build`.
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-->
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</body>
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</html>
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react-springboot/my-app/public/logo192.png
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react-springboot/my-app/public/logo192.png
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react-springboot/my-app/public/logo512.png
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react-springboot/my-app/public/logo512.png
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react-springboot/my-app/public/manifest.json
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react-springboot/my-app/public/manifest.json
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{
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"short_name": "React App",
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"name": "Create React App Sample",
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"icons": [
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{
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"src": "favicon.ico",
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"sizes": "64x64 32x32 24x24 16x16",
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"type": "image/x-icon"
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},
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{
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"src": "logo192.png",
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"type": "image/png",
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"sizes": "192x192"
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},
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{
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"src": "logo512.png",
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"type": "image/png",
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"sizes": "512x512"
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}
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],
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"start_url": ".",
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"display": "standalone",
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"theme_color": "#000000",
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"background_color": "#ffffff"
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}
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react-springboot/my-app/public/robots.txt
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react-springboot/my-app/public/robots.txt
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# https://www.robotstxt.org/robotstxt.html
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User-agent: *
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Disallow:
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react-springboot/my-app/src/App.css
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react-springboot/my-app/src/App.css
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.box-style {
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color: blue;
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}
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react-springboot/my-app/src/App.js
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react-springboot/my-app/src/App.js
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import './App.css';
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let a = 10;
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const b = 20;
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function App() {
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const mystyle = {
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color: 'red',
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};
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let list = [1, 2, 3];
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const users = [
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{ id: 1, name: 'kim', phone: '1234' },
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{ id: 2, name: 'lee', phone: '1234' },
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{ id: 3, name: 'choi', phone: '1234' },
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];
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const update = {
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id: 2,
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name: 'park',
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};
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const newUser = users.map((u) =>
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u.id === update.id ? { ...u, ...update } : u,
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);
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console.log(newUser);
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return (
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<>
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<div style={mystyle}>안녕{a === 10 ? '10입니다.' : '10이 아닙니다'}</div>
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<h1 className="box-style">제목{b === 20 && '20입니다.'}</h1>
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<div>
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{list.map((n) => (
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<h1>n</h1>
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))}
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</div>
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</>
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);
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}
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export default App;
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react-springboot/my-app/src/App.test.js
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react-springboot/my-app/src/App.test.js
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import { render, screen } from '@testing-library/react';
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import App from './App';
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test('renders learn react link', () => {
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render(<App />);
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const linkElement = screen.getByText(/learn react/i);
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expect(linkElement).toBeInTheDocument();
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});
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react-springboot/my-app/src/index.css
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react-springboot/my-app/src/index.css
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body {
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margin: 0;
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font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
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'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
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sans-serif;
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-webkit-font-smoothing: antialiased;
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-moz-osx-font-smoothing: grayscale;
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}
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code {
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font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
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monospace;
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}
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react-springboot/my-app/src/index.js
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react-springboot/my-app/src/index.js
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import React from 'react';
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import ReactDOM from 'react-dom';
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import './index.css';
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import App from './App';
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import reportWebVitals from './reportWebVitals';
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ReactDOM.render(
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<React.StrictMode>
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<App />
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</React.StrictMode>,
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document.getElementById('root')
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);
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// If you want to start measuring performance in your app, pass a function
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// to log results (for example: reportWebVitals(console.log))
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// or send to an analytics endpoint. Learn more: https://bit.ly/CRA-vitals
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reportWebVitals();
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react-springboot/my-app/src/reportWebVitals.js
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react-springboot/my-app/src/reportWebVitals.js
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const reportWebVitals = onPerfEntry => {
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if (onPerfEntry && onPerfEntry instanceof Function) {
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import('web-vitals').then(({ getCLS, getFID, getFCP, getLCP, getTTFB }) => {
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getCLS(onPerfEntry);
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getFID(onPerfEntry);
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getFCP(onPerfEntry);
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getLCP(onPerfEntry);
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getTTFB(onPerfEntry);
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});
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}
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};
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export default reportWebVitals;
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react-springboot/my-app/src/setupTests.js
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react-springboot/my-app/src/setupTests.js
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// jest-dom adds custom jest matchers for asserting on DOM nodes.
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// allows you to do things like:
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// expect(element).toHaveTextContent(/react/i)
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// learn more: https://github.com/testing-library/jest-dom
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import '@testing-library/jest-dom';
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