init

Author: philipluk

.github/workflows/CODEOWNERS

@@ -0,0 +1,4 @@
+* @philipluk
+*.js @philipluk
+*.yml @philipluk
+/public/ @philipluk

.prettierignore

@@ -0,0 +1,4 @@
+build
+coverage
+node_modules
+package-lock.json

.prettierrc

@@ -0,0 +1,18 @@
+{
+  "arrowParens": "always",
+  "bracketSpacing": true,
+  "htmlWhitespaceSensitivity": "css",
+  "insertPragma": false,
+  "jsxBracketSameLine": false,
+  "jsxSingleQuote": false,
+  "printWidth": 80,
+  "proseWrap": "preserve",
+  "quoteProps": "as-needed",
+  "requirePragma": false,
+  "semi": true,
+  "singleQuote": false,
+  "tabWidth": 2,
+  "trailingComma": "es5",
+  "useTabs": false,
+  "vueIndentScriptAndStyle": false
+}

package-lock.json

@@ -14,7 +14,9 @@
     "start": "react-scripts start",
     "build": "react-scripts build",
     "test": "react-scripts test",
-    "eject": "react-scripts eject"
+    "eject": "react-scripts eject",
+    "format:check": "prettier --check \"**/*.{js,jsx,yml,yaml,json,css,scss,md}\"",
+    "format:write": "prettier --write \"**/*.{js,jsx,yml,yaml,json,css,scss,md}\""
   },
   "eslintConfig": {
     "extends": "react-app"
@@ -30,5 +32,8 @@
       "last 1 firefox version",
       "last 1 safari version"
     ]
+  },
+  "devDependencies": {
+    "prettier": "2.0.2"
   }
 }

package.json

@@ -1,6 +1,6 @@
-import React from 'react';
-import logo from './logo.svg';
-import './App.css';
+import React from "react";
+import logo from "./logo.svg";
+import "./App.css";
 
 function App() {
   return (
@@ -16,7 +16,7 @@ function App() {
           target="_blank"
           rel="noopener noreferrer"
         >
-          Learn React
+          Phil Learn React
         </a>
       </header>
     </div>

src/App.js

@@ -1,8 +1,8 @@
-import React from 'react';
-import { render } from '@testing-library/react';
-import App from './App';
+import React from "react";
+import { render } from "@testing-library/react";
+import App from "./App";
 
-test('renders learn react link', () => {
+test("renders learn react link", () => {
   const { getByText } = render(<App />);
   const linkElement = getByText(/learn react/i);
   expect(linkElement).toBeInTheDocument();

src/App.test.js

@@ -1,13 +1,13 @@
 body {
   margin: 0;
-  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
-    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
+  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',
+  font-family: source-code-pro, Menlo, Monaco, Consolas, "Courier New",
     monospace;
 }

src/index.css

@@ -1,14 +1,14 @@
-import React from 'react';
-import ReactDOM from 'react-dom';
-import './index.css';
-import App from './App';
-import * as serviceWorker from './serviceWorker';
+import React from "react";
+import ReactDOM from "react-dom";
+import "./index.css";
+import App from "./App";
+import * as serviceWorker from "./serviceWorker";
 
 ReactDOM.render(
   <React.StrictMode>
     <App />
   </React.StrictMode>,
-  document.getElementById('root')
+  document.getElementById("root")
 );
 
 // If you want your app to work offline and load faster, you can change

src/index.js

@@ -11,17 +11,17 @@
 // opt-in, read https://bit.ly/CRA-PWA
 
 const isLocalhost = Boolean(
-  window.location.hostname === 'localhost' ||
+  window.location.hostname === "localhost" ||
     // [::1] is the IPv6 localhost address.
-    window.location.hostname === '[::1]' ||
+    window.location.hostname === "[::1]" ||
     // 127.0.0.0/8 are considered localhost for IPv4.
     window.location.hostname.match(
       /^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/
     )
 );
 
 export function register(config) {
-  if (process.env.NODE_ENV === 'production' && 'serviceWorker' in navigator) {
+  if (process.env.NODE_ENV === "production" && "serviceWorker" in navigator) {
     // The URL constructor is available in all browsers that support SW.
     const publicUrl = new URL(process.env.PUBLIC_URL, window.location.href);
     if (publicUrl.origin !== window.location.origin) {
@@ -31,7 +31,7 @@ export function register(config) {
       return;
     }
 
-    window.addEventListener('load', () => {
+    window.addEventListener("load", () => {
       const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`;
 
       if (isLocalhost) {
@@ -42,8 +42,8 @@ export function register(config) {
         // service worker/PWA documentation.
         navigator.serviceWorker.ready.then(() => {
           console.log(
-            'This web app is being served cache-first by a service ' +
-              'worker. To learn more, visit https://bit.ly/CRA-PWA'
+            "This web app is being served cache-first by a service " +
+              "worker. To learn more, visit https://bit.ly/CRA-PWA"
           );
         });
       } else {
@@ -57,21 +57,21 @@ export function register(config) {
 function registerValidSW(swUrl, config) {
   navigator.serviceWorker
     .register(swUrl)
-    .then(registration => {
+    .then((registration) => {
       registration.onupdatefound = () => {
         const installingWorker = registration.installing;
         if (installingWorker == null) {
           return;
         }
         installingWorker.onstatechange = () => {
-          if (installingWorker.state === 'installed') {
+          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.'
+                "New content is available and will be used when all " +
+                  "tabs for this page are closed. See https://bit.ly/CRA-PWA."
               );
 
               // Execute callback
@@ -82,7 +82,7 @@ function registerValidSW(swUrl, config) {
               // 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.');
+              console.log("Content is cached for offline use.");
 
               // Execute callback
               if (config && config.onSuccess) {
@@ -93,25 +93,25 @@ function registerValidSW(swUrl, config) {
         };
       };
     })
-    .catch(error => {
-      console.error('Error during service worker registration:', error);
+    .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' },
+    headers: { "Service-Worker": "script" },
   })
-    .then(response => {
+    .then((response) => {
       // Ensure service worker exists, and that we really are getting a JS file.
-      const contentType = response.headers.get('content-type');
+      const contentType = response.headers.get("content-type");
       if (
         response.status === 404 ||
-        (contentType != null && contentType.indexOf('javascript') === -1)
+        (contentType != null && contentType.indexOf("javascript") === -1)
       ) {
         // No service worker found. Probably a different app. Reload the page.
-        navigator.serviceWorker.ready.then(registration => {
+        navigator.serviceWorker.ready.then((registration) => {
           registration.unregister().then(() => {
             window.location.reload();
           });
@@ -123,18 +123,18 @@ function checkValidServiceWorker(swUrl, config) {
     })
     .catch(() => {
       console.log(
-        'No internet connection found. App is running in offline mode.'
+        "No internet connection found. App is running in offline mode."
       );
     });
 }
 
 export function unregister() {
-  if ('serviceWorker' in navigator) {
+  if ("serviceWorker" in navigator) {
     navigator.serviceWorker.ready
-      .then(registration => {
+      .then((registration) => {
         registration.unregister();
       })
-      .catch(error => {
+      .catch((error) => {
         console.error(error.message);
       });
   }