Add React-Redux boilerplate
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module.exports = {
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"env": {
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"browser": true,
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"es6": true
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},
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"extends": ["eslint:recommended", "plugin:react/recommended"],
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"globals": {
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"Atomics": "readonly",
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"SharedArrayBuffer": "readonly"
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},
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"parserOptions": {
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"ecmaFeatures": {
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"jsx": true
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},
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"ecmaVersion": 2018,
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"sourceType": "module"
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},
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"plugins": [
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"react"
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],
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"rules": {
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"indent": [
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"error",
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"tab"
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],
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"linebreak-style": [
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"error",
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"unix"
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],
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"quotes": [
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"error",
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"double"
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],
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"semi": [
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"error",
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"always"
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]
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},
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"settings": {
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"react": {
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"version": "detect"
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}
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}
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};
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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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{
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"name": "osd-frontend",
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"version": "0.1.0",
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"private": true,
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"dependencies": {
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"@reduxjs/toolkit": "^1.1.0",
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"@testing-library/jest-dom": "^4.2.4",
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"@testing-library/react": "^9.3.2",
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"@testing-library/user-event": "^7.1.2",
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"react": "^17.0.1",
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"react-dom": "^17.0.1",
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"react-redux": "^7.1.3",
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"react-scripts": "4.0.1"
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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": "react-app"
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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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<!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 Redux 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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{
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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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# https://www.robotstxt.org/robotstxt.html
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User-agent: *
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.App {
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text-align: center;
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}
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.App-logo {
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height: 40vmin;
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pointer-events: none;
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}
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@media (prefers-reduced-motion: no-preference) {
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.App-logo {
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animation: App-logo-float infinite 3s ease-in-out;
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}
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}
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.App-header {
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min-height: 100vh;
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display: flex;
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flex-direction: column;
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align-items: center;
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justify-content: center;
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font-size: calc(10px + 2vmin);
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}
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.App-link {
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color: rgb(112, 76, 182);
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}
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@keyframes App-logo-float {
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0% {
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transform: translateY(0);
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}
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50% {
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transform: translateY(10px)
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}
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100% {
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transform: translateY(0px)
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}
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}
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import React from "react";
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import { Counter } from "./features/counter/Counter";
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import "./App.css";
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function App() {
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return (
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<div className="App">
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<header className="App-header">
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<Counter />
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<p>
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Edit <code>src/App.js</code> and save to reload.
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</p>
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</header>
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</div>
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);
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}
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export default App;
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import { configureStore } from "@reduxjs/toolkit";
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import counterReducer from "../features/counter/counterSlice";
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export default configureStore({
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reducer: {
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counter: counterReducer,
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},
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});
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import React, { useState } from "react";
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import { useSelector, useDispatch } from "react-redux";
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import {
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decrement,
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increment,
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incrementByAmount,
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incrementAsync,
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selectCount,
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} from "./counterSlice";
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import styles from "./Counter.module.css";
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export function Counter() {
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const count = useSelector(selectCount);
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const dispatch = useDispatch();
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const [incrementAmount, setIncrementAmount] = useState("2");
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return (
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<div>
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<div className={styles.row}>
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<button
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className={styles.button}
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aria-label="Increment value"
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onClick={() => dispatch(increment())}
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>
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+
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</button>
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<span className={styles.value}>{count}</span>
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<button
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className={styles.button}
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aria-label="Decrement value"
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onClick={() => dispatch(decrement())}
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>
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-
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</button>
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</div>
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<div className={styles.row}>
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<input
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className={styles.textbox}
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aria-label="Set increment amount"
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value={incrementAmount}
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onChange={e => setIncrementAmount(e.target.value)}
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/>
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<button
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className={styles.button}
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onClick={() => dispatch(incrementByAmount(Number(incrementAmount) || 0))}
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>
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Add Amount
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</button>
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<button
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className={styles.asyncButton}
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onClick={() => dispatch(incrementAsync(Number(incrementAmount) || 0))}
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>
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Add Async
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</button>
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</div>
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</div>
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);
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}
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.row {
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display: flex;
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align-items: center;
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justify-content: center;
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}
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.row:not(:last-child) {
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margin-bottom: 16px;
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}
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.value {
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font-size: 78px;
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padding-left: 16px;
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padding-right: 16px;
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margin-top: 2px;
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font-family: 'Courier New', Courier, monospace;
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}
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.button {
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appearance: none;
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background: none;
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font-size: 32px;
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padding-left: 12px;
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padding-right: 12px;
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outline: none;
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border: 2px solid transparent;
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color: rgb(112, 76, 182);
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padding-bottom: 4px;
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cursor: pointer;
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background-color: rgba(112, 76, 182, 0.1);
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border-radius: 2px;
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transition: all 0.15s;
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}
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.textbox {
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font-size: 32px;
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padding: 2px;
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width: 64px;
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text-align: center;
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margin-right: 8px;
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}
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.button:hover, .button:focus {
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border: 2px solid rgba(112, 76, 182, 0.4);
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}
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.button:active {
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background-color: rgba(112, 76, 182, 0.2);
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}
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.asyncButton {
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composes: button;
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position: relative;
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margin-left: 8px;
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}
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.asyncButton:after {
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content: "";
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background-color: rgba(112, 76, 182, 0.15);
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display: block;
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position: absolute;
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width: 100%;
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height: 100%;
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left: 0;
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top: 0;
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opacity: 0;
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transition: width 1s linear, opacity 0.5s ease 1s;
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}
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.asyncButton:active:after {
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width: 0%;
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opacity: 1;
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transition: 0s
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}
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import { createSlice } from "@reduxjs/toolkit";
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export const counterSlice = createSlice({
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name: "counter",
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initialState: {
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value: 0,
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},
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reducers: {
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increment: state => {
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// Redux Toolkit allows us to write "mutating" logic in reducers. It
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// doesn"t actually mutate the state because it uses the Immer library,
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// which detects changes to a "draft state" and produces a brand new
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// immutable state based off those changes
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state.value += 1;
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},
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decrement: state => {
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state.value -= 1;
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},
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incrementByAmount: (state, action) => {
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state.value += action.payload;
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},
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},
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});
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export const { increment, decrement, incrementByAmount } = counterSlice.actions;
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// The function below is called a thunk and allows us to perform async logic. It
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// can be dispatched like a regular action: `dispatch(incrementAsync(10))`. This
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// will call the thunk with the `dispatch` function as the first argument. Async
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// code can then be executed and other actions can be dispatched
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export const incrementAsync = amount => dispatch => {
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setTimeout(() => {
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dispatch(incrementByAmount(amount));
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}, 1000);
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};
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// The function below is called a selector and allows us to select a value from
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// the state. Selectors can also be defined inline where they"re used instead of
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// in the slice file. For example: `useSelector((state) => state.counter.value)`
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export const selectCount = state => state.counter.value;
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export default counterSlice.reducer;
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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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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 store from "./app/store";
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import { Provider } from "react-redux";
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import * as serviceWorker from "./serviceWorker";
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ReactDOM.render(
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<React.StrictMode>
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<Provider store={store}>
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<App />
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</Provider>
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</React.StrictMode>,
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document.getElementById("root")
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);
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// If you want your app to work offline and load faster, you can change
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// unregister() to register() below. Note this comes with some pitfalls.
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// Learn more about service workers: https://bit.ly/CRA-PWA
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serviceWorker.unregister();
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// This optional code is used to register a service worker.
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// register() is not called by default.
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// This lets the app load faster on subsequent visits in production, and gives
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// it offline capabilities. However, it also means that developers (and users)
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// will only see deployed updates on subsequent visits to a page, after all the
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// existing tabs open on the page have been closed, since previously cached
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// resources are updated in the background.
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// To learn more about the benefits of this model and instructions on how to
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// opt-in, read https://bit.ly/CRA-PWA
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const isLocalhost = Boolean(
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window.location.hostname === "localhost" ||
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// [::1] is the IPv6 localhost address.
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window.location.hostname === "[::1]" ||
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// 127.0.0.0/8 are considered localhost for IPv4.
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window.location.hostname.match(
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/^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/
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)
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);
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export function register(config) {
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if (process.env.NODE_ENV === "production" && "serviceWorker" in navigator) {
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// The URL constructor is available in all browsers that support SW.
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const publicUrl = new URL(process.env.PUBLIC_URL, window.location.href);
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if (publicUrl.origin !== window.location.origin) {
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// Our service worker won"t work if PUBLIC_URL is on a different origin
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// from what our page is served on. This might happen if a CDN is used to
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// serve assets; see https://github.com/facebook/create-react-app/issues/2374
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return;
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}
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window.addEventListener("load", () => {
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const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`;
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if (isLocalhost) {
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// This is running on localhost. Let"s check if a service worker still exists or not.
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checkValidServiceWorker(swUrl, config);
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// Add some additional logging to localhost, pointing developers to the
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// service worker/PWA documentation.
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navigator.serviceWorker.ready.then(() => {
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console.log(
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"This web app is being served cache-first by a service " +
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"worker. To learn more, visit https://bit.ly/CRA-PWA"
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);
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});
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} else {
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// Is not localhost. Just register service worker
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registerValidSW(swUrl, config);
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}
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});
|
||||
}
|
||||
}
|
||||
|
||||
function registerValidSW(swUrl, config) {
|
||||
navigator.serviceWorker
|
||||
.register(swUrl)
|
||||
.then(registration => {
|
||||
registration.onupdatefound = () => {
|
||||
const installingWorker = registration.installing;
|
||||
if (installingWorker == null) {
|
||||
return;
|
||||
}
|
||||
installingWorker.onstatechange = () => {
|
||||
if (installingWorker.state === "installed") {
|
||||
if (navigator.serviceWorker.controller) {
|
||||
// At this point, the updated precached content has been fetched,
|
||||
// but the previous service worker will still serve the older
|
||||
// content until all client tabs are closed.
|
||||
console.log(
|
||||
"New content is available and will be used when all " +
|
||||
"tabs for this page are closed. See https://bit.ly/CRA-PWA."
|
||||
);
|
||||
|
||||
// Execute callback
|
||||
if (config && config.onUpdate) {
|
||||
config.onUpdate(registration);
|
||||
}
|
||||
} else {
|
||||
// At this point, everything has been precached.
|
||||
// It"s the perfect time to display a
|
||||
// "Content is cached for offline use." message.
|
||||
console.log("Content is cached for offline use.");
|
||||
|
||||
// Execute callback
|
||||
if (config && config.onSuccess) {
|
||||
config.onSuccess(registration);
|
||||
}
|
||||
}
|
||||
}
|
||||
};
|
||||
};
|
||||
})
|
||||
.catch(error => {
|
||||
console.error("Error during service worker registration:", error);
|
||||
});
|
||||
}
|
||||
|
||||
function checkValidServiceWorker(swUrl, config) {
|
||||
// Check if the service worker can be found. If it can"t reload the page.
|
||||
fetch(swUrl, {
|
||||
headers: { "Service-Worker": "script" },
|
||||
})
|
||||
.then(response => {
|
||||
// Ensure service worker exists, and that we really are getting a JS file.
|
||||
const contentType = response.headers.get("content-type");
|
||||
if (
|
||||
response.status === 404 ||
|
||||
(contentType != null && contentType.indexOf("javascript") === -1)
|
||||
) {
|
||||
// No service worker found. Probably a different app. Reload the page.
|
||||
navigator.serviceWorker.ready.then(registration => {
|
||||
registration.unregister().then(() => {
|
||||
window.location.reload();
|
||||
});
|
||||
});
|
||||
} else {
|
||||
// Service worker found. Proceed as normal.
|
||||
registerValidSW(swUrl, config);
|
||||
}
|
||||
})
|
||||
.catch(() => {
|
||||
console.log(
|
||||
"No internet connection found. App is running in offline mode."
|
||||
);
|
||||
});
|
||||
}
|
||||
|
||||
export function unregister() {
|
||||
if ("serviceWorker" in navigator) {
|
||||
navigator.serviceWorker.ready.then(registration => {
|
||||
registration.unregister();
|
||||
});
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue