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# 04 Static and Config Members
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This subdirectory contains apps already generated with create-react-app, as
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described in the Static and Config Members blog post (link here). The source code has been
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modified to include the examples in the blog post so you can see it in action.
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For each of the following examples, cd into the directory and run ```npm
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install``` followeed by ```npm run```
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See src/App.js in each of the example directories.
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* a-static-members - simple example illustrating static members (examine the error object thrown via Chrome developer tools)
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* b-configs - simple example illustrating static members (examine output in Chrome developer tools)
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# See https://help.github.com/ignore-files/ for more about ignoring files.
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# dependencies
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/node_modules
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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*

04-static-and-config-members/a-static-members/README.md

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{
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"name": "a-static-members",
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"version": "0.1.0",
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"private": true,
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"dependencies": {
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"react": "^16.2.0",
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"react-dom": "^16.2.0",
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"react-scripts": "1.0.17"
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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 --env=jsdom",
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"eject": "react-scripts eject"
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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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<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
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<meta name="theme-color" content="#000000">
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<!--
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manifest.json provides metadata used when your web app is added to the
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homescreen on Android. See https://developers.google.com/web/fundamentals/engage-and-retain/web-app-manifest/
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-->
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<link rel="manifest" href="%PUBLIC_URL%/manifest.json">
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<link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
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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>
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You need to enable JavaScript to run this app.
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</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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"start_url": "./index.html",
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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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.App {
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text-align: center;
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}
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.App-logo {
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animation: App-logo-spin infinite 20s linear;
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height: 80px;
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}
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.App-header {
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background-color: #222;
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height: 150px;
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padding: 20px;
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color: white;
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}
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.App-title {
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font-size: 1.5em;
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}
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.App-intro {
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font-size: large;
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}
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@keyframes App-logo-spin {
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from { transform: rotate(0deg); }
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to { transform: rotate(360deg); }
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}
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import React, { Component } from 'react';
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import './App.css';
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class MyError {
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static codes = {
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NO_NETWORK : 1,
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SAVE_ERROR : 2,
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NO_PERMISSION : 3
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}
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constructor(o) {
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this.code = o.code
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this.text = o.text
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}
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static fromAjax (response, doThrow) {
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let error;
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if (true || response.status === 404) { // we're faking/forcing the 404 here
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error = new MyError({
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code : MyError.codes.NO_NETWORK,
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text : response.statusText
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});
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}
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if (doThrow) {
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throw error;
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}
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return error;
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}
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}
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class Foo extends Component {
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componentWillMount () {
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fetch('/foo')
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.then(response => {
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MyError.fromAjax(response, true);
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return response.json();
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});
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}
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render () {
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return (
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<div>Hello there</div>
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);
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}
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}
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class App extends Component {
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render() {
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return (
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<div className="App">
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<Foo/>
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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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import React from 'react';
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import ReactDOM from 'react-dom';
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import App from './App';
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it('renders without crashing', () => {
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const div = document.createElement('div');
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ReactDOM.render(<App />, div);
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});

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