remove some leftover create-react-app boilerplate
This commit is contained in:
Matt Dunn-Rankin
parent
b57cb2b223
commit
da3b690645
3 changed files with 5 additions and 158 deletions
17
src/index.js
17
src/index.js
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@ -1,17 +1,10 @@
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import React from 'react';
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import React from "react";
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import ReactDOM from 'react-dom';
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import ReactDOM from "react-dom";
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import './index.css';
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import "./index.css";
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import App from './App';
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import App from "./App";
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import * as serviceWorker from './serviceWorker';
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ReactDOM.render(
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ReactDOM.render(
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<React.StrictMode>
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<React.StrictMode>
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<App />
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<App />
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</React.StrictMode>,
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</React.StrictMode>,
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document.getElementById('root')
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document.getElementById("root")
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);
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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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@ -1,141 +0,0 @@
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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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});
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}
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}
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function registerValidSW(swUrl, config) {
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navigator.serviceWorker
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.register(swUrl)
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.then(registration => {
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registration.onupdatefound = () => {
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const installingWorker = registration.installing;
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if (installingWorker == null) {
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return;
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}
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installingWorker.onstatechange = () => {
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if (installingWorker.state === 'installed') {
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if (navigator.serviceWorker.controller) {
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// At this point, the updated precached content has been fetched,
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// but the previous service worker will still serve the older
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// content until all client tabs are closed.
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console.log(
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'New content is available and will be used when all ' +
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'tabs for this page are closed. See https://bit.ly/CRA-PWA.'
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);
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// Execute callback
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if (config && config.onUpdate) {
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config.onUpdate(registration);
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}
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} else {
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// At this point, everything has been precached.
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// It's the perfect time to display a
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// "Content is cached for offline use." message.
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console.log('Content is cached for offline use.');
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// Execute callback
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if (config && config.onSuccess) {
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config.onSuccess(registration);
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}
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}
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}
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};
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};
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})
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.catch(error => {
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console.error('Error during service worker registration:', error);
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});
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}
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function checkValidServiceWorker(swUrl, config) {
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// Check if the service worker can be found. If it can't reload the page.
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fetch(swUrl, {
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headers: { 'Service-Worker': 'script' },
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})
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.then(response => {
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// Ensure service worker exists, and that we really are getting a JS file.
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const contentType = response.headers.get('content-type');
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if (
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response.status === 404 ||
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(contentType != null && contentType.indexOf('javascript') === -1)
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) {
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// No service worker found. Probably a different app. Reload the page.
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navigator.serviceWorker.ready.then(registration => {
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registration.unregister().then(() => {
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window.location.reload();
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});
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});
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} else {
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// Service worker found. Proceed as normal.
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registerValidSW(swUrl, config);
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}
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})
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.catch(() => {
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console.log(
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'No internet connection found. App is running in offline mode.'
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);
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});
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}
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export function unregister() {
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if ('serviceWorker' in navigator) {
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navigator.serviceWorker.ready
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.then(registration => {
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registration.unregister();
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})
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.catch(error => {
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console.error(error.message);
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});
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}
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}
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@ -1,5 +0,0 @@
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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/extend-expect';
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