Best JavaScript code snippet using wpt
serviceWorker.js
Source: serviceWorker.js
1// This optional code is used to register a service worker.2// register() is not called by default.3// This lets the app load faster on subsequent visits in production, and gives4// it offline capabilities. However, it also means that developers (and users)5// will only see deployed updates on subsequent visits to a page, after all the6// existing tabs open on the page have been closed, since previously cached7// resources are updated in the background.8// To learn more about the benefits of this model and instructions on how to9// opt-in, read https://bit.ly/CRA-PWA10const isLocalhost = Boolean(11 window.location.hostname === 'localhost' ||12 // [::1] is the IPv6 localhost address.13 window.location.hostname === '[::1]' ||14 // 127.0.0.0/8 are considered localhost for IPv4.15 window.location.hostname.match(16 /^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/,17 ),18);19function registerValidSW(swUrl, config) {20 navigator.serviceWorker21 .register(swUrl)22 .then(registration => {23 const registrationCopy = registration;24 registrationCopy.onupdatefound = () => {25 const installingWorker = registrationCopy.installing;26 if (installingWorker == null) {27 return;28 }29 installingWorker.onstatechange = () => {30 if (installingWorker.state === 'installed') {31 if (navigator.serviceWorker.controller) {32 // At this point, the updated precached content has been fetched,33 // but the previous service worker will still serve the older34 // content until all client tabs are closed.35 console.log(36 'New content is available and will be used when all ' +37 'tabs for this page are closed. See https://bit.ly/CRA-PWA.',38 );39 // Execute callback40 if (config && config.onUpdate) {41 config.onUpdate(registrationCopy);42 }43 } else {44 // At this point, everything has been precached.45 // It's the perfect time to display a46 // "Content is cached for offline use." message.47 console.log('Content is cached for offline use.');48 // Execute callback49 if (config && config.onSuccess) {50 config.onSuccess(registrationCopy);51 }52 }53 }54 };55 };56 })57 .catch(error => {58 console.error('Error during service worker registration:', error);59 });60}61function checkValidServiceWorker(swUrl, config) {62 // Check if the service worker can be found. If it can't reload the page.63 fetch(swUrl, {64 headers: { 'Service-Worker': 'script' },65 })66 .then(response => {67 // Ensure service worker exists, and that we really are getting a JS file.68 const contentType = response.headers.get('content-type');69 if (70 response.status === 404 ||71 (contentType != null && contentType.indexOf('javascript') === -1)72 ) {73 // No service worker found. Probably a different app. Reload the page.74 navigator.serviceWorker.ready.then(registration => {75 registration.unregister().then(() => {76 window.location.reload();77 });78 });79 } else {80 // Service worker found. Proceed as normal.81 registerValidSW(swUrl, config);82 }83 })84 .catch(() => {85 console.log(86 'No internet connection found. App is running in offline mode.',87 );88 });89}90export function register(config) {91 if (process.env.NODE_ENV === 'production' && 'serviceWorker' in navigator) {92 // The URL constructor is available in all browsers that support SW.93 const publicUrl = new URL(process.env.PUBLIC_URL, window.location.href);94 if (publicUrl.origin !== window.location.origin) {95 // Our service worker won't work if PUBLIC_URL is on a different origin96 // from what our page is served on. This might happen if a CDN is used to97 // serve assets; see https://github.com/facebook/create-react-app/issues/237498 return;99 }100 window.addEventListener('load', () => {101 const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`;102 if (isLocalhost) {103 // This is running on localhost. Let's check if a service worker still exists or not.104 checkValidServiceWorker(swUrl, config);105 // Add some additional logging to localhost, pointing developers to the106 // service worker/PWA documentation.107 navigator.serviceWorker.ready.then(() => {108 console.log(109 'This web app is being served cache-first by a service ' +110 'worker. To learn more, visit https://bit.ly/CRA-PWA',111 );112 });113 } else {114 // Is not localhost. Just register service worker115 registerValidSW(swUrl, config);116 }117 });118 }119}120export function unregister() {121 if ('serviceWorker' in navigator) {122 navigator.serviceWorker.ready123 .then(registration => {124 registration.unregister();125 })126 .catch(error => {127 console.error(error.message);128 });129 }...
RegistrationCopyPage.js
Source: RegistrationCopyPage.js
1import React, { Component } from "react";2import styled from "styled-components";34const StyledRegistrationCopy = styled.div`5 display: flex;6 align-items: center;7 flex-flow: column;8 width: 1440px;9 height: 802px;10 margin: 0 auto;11 padding: 150px 50px 75px 50px;12 background-color: #f8f8f8;13 h2 {14 width: 357px;15 height: 29px;16 font-family: Helvetica;17 font-size: 24px;18 font-weight: bold;19 font-stretch: normal;20 font-style: normal;21 line-height: normal;22 letter-spacing: normal;23 text-align: center;24 color: #4c4c4c;25 border-bottom: solid 2px #e47d31;26 margin-top: 50px;27 margin-bottom: 75px; 28 }29 p {30 width: 497px;31 height: 144px;32 font-family: Helvetica;33 font-size: 20px;34 font-weight: normal;35 font-stretch: normal;36 font-style: normal;37 line-height: normal;38 letter-spacing: normal;39 text-align: center;40 color: #4c4c4c;41 }42`;434445const RegistrationCopy = () => (46 <StyledRegistrationCopy>47 <h2>REGISTRATION</h2>48 <p>Thanks for your registration.Our hard working monkeys are preparing a digital message called E-Mail that will be sent to you soon.49Since monkeys aren't good in writing the message could end up in you junk folder. Our apologies for any inconvienience. </p>505152 </StyledRegistrationCopy>53);54
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sw.js
Source: sw.js
1importScripts('sw-helpers.js');2async function getFetchResult(record) {3 response = await record.responseReady;4 if (!response)5 return Promise.resolve(null);6 return {7 url: response.url,8 status: response.status,9 text: await response.text(),10 };11}12function handleBackgroundFetchUpdateEvent(event) {13 event.waitUntil(14 event.registration.matchAll()15 .then(records =>16 Promise.all(records.map(record => getFetchResult(record))))17 .then(results => {18 const registrationCopy = cloneRegistration(event.registration);19 sendMessageToDocument(20 { type: event.type, eventRegistration: registrationCopy, results })21 }));22}23self.addEventListener('backgroundfetchsuccess', handleBackgroundFetchUpdateEvent);24self.addEventListener('backgroundfetchfail', handleBackgroundFetchUpdateEvent);...
Using AI Code Generation
1var wpt = require('webpagetest');2var wpt = new WebPageTest('www.webpagetest.org', 'A.1234567890abcdef1234567890abcdef');3var options = {4};5 if (err) {6 console.log(err);7 } else {8 console.log(data);9 }10});
Using AI Code Generation
1var wptools = require('wptools');2var page = wptools('Barack Obama');3page.registrationCopy(function(err, data) {4 console.log(data);5});6{7 "registrationCopy": {8 "registrationCopy": "This page was last modified on 7 October 2015, at 23:01. Text is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization. Privacy policy About Wikipedia Disclaimers Contact Wikipedia Developers Cookie statement Mobile view"9 }10}11var wptools = require('wptools');12var page = wptools('Barack Obama');13page.registrationCopy(function(err, data) {14 console.log(data);15});16{17 "registrationCopy": {18 "registrationCopy": "This page was last modified on 7 October 2015, at 23:01. Text is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization. Privacy policy About Wikipedia Disclaimers Contact Wikipedia Developers Cookie statement Mobile view"19 }20}21var wptools = require('wptools');22var page = wptools('Barack Obama');23page.registrationCopy(function(err, data) {24 console.log(data);25});26{27 "registrationCopy": {
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