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React News, React Native, React App Friday, December 15

React News TLDR / Table of Contents

  • React vs Vue.js. Which to Choose?
    • Both React.js and Vue.js have benefits and disadvantages, that may confuse a potential client at first. We’re going to make their comparison in this article.
    • Vue, React, React vs Vue.js, React JavaScript framework, vue library
  • Going real time with Socket.IO, Node.Js, and React – codeburst
    • Learn the basics of WebSockets and Socket.IO while pairing your first real-time server with a React frontend Looks like everybody is building chat apps with Socket.IO these days and while that’s…
    • server, socket.io, client, const express, socket
  • You.i TV Breakthrough Brings React Native to all 10-Foot Platforms – You.i TV
    • December 14th, 2017 — Ottawa, Ontario — You.i TV, a global leader in video app experience platforms, today announced that it is extending the benefits of the React Native development framework to streaming devices, consoles and smart TVs, dramatically increasing the utility of the Facebook-backed open source JavaScript project.
    • You.i TV, React Native, You.i Engine, React Native development, You.i Engine-powered TV
  • Testing React Components – Ovidiu Cherecheș – Medium
    • Testing should make us confident. Confident that our software does what we think it does, and that it will continue to do so as we pile up functionality. But testing UI components rarely breeds…
    • testing React components, testing UI components, real life components, Official testing examples, Cosmos Test API
  • How to Connect your React App to a REST API – codeburst
    • In the previous parts of this series you learned how to bootstrap a new React app with create-react-app and create a list component. Today we are going to connect this app to an existing REST API and…
    • rest api, data, app, state, App component
  • React native or phonegap- build apps the easy way – WhaTech
    • Now develop your mobile apps the cross-platform way where they look and feel like native with React Native and PhoneGap. React Native is Facebook’s backed UI component library making app development easier than ever before.
    • React Native, app development, cross-platform app development, mobile app development, hybrid app development
  • The State of JavaScript 2017: Front-end Frameworks – Results
    • A short survey about current popular JavaScript technologies.
    • front-end frameworks, JavaScript mindshare, dominant player, big gains, different libraries
  • While talking about React vs Vue.js, we have to keep in mind that React is an open-source and 100% free JS framework used in the creation of the user interfaces, whose main aim is to regulate  the updating processes of the web pages and the control of the key flows,…
  • First of all, the main base of Vue is the MVVM pattern, which makes the entire framework predominantly focused on the development of the user interface where the key role is usually played by the usage of data models and reactive binding data.
  • Thus, while discussing   the differences between React JavaScript framework and Vue, it is important to identify the pros and cons of Vue.js.
  • It could be argued that lots of the developers and programmers face such  problem only because the creation of really cool and interesting things with Vue is possible without the involvement of the functions and tools of  third-party libraries.
  • Read also: TOP 7 JavaScript Libraries That Worth Your Attention – Comparing Vue with ReactJS library – While considering the differences between ReactJS and Vue.js, it might be appropriate to mention not only the simplicity but also those features of each of these frameworks that may fit to one or another project.

Tags: Vue, React, React vs Vue.js, React JavaScript framework, vue library

  • If you’re wondering how to implement this fantastic tecnology into your Node.js applications, well, the answer is Socket.IO, one of the most popular real-time engines for Node.js.Socket.IO works mostly by the means of Node.js events: you can listen for a connection event, fire up a function when a new user…
  • This will hold the actual server:const express = require(“express”);const http = require(“http”);const socketIo = require(“socket.io”);const axios = require(“axios”);const port = process.env.PORT || 4001;const index = app = express();app.use(index);const server = http.createServer(app);const io = socketIo(server); // Interesting!const getApiAndEmit = “TODO”The code above should be no mistery for you: it is a…
  • By doing so we have wired up the ExpressJS server to Socket.IO.You should also have noticed a empty function:const getApiAndEmit = “TODO”we will fill it with some meaningful code next up.Notice also how the application calls the index route: even if the server won’t serve any HTML content we will…
  • It will be consumed by the client } catch (error) { console.error(`Error: ${error.code}`); }};The function takes the socket as an argument, makes an HTTP request to the DarkSky API (don’t forget to fill the url with your actual API key), and finally emits the message “FromAPI” which will contain the…
  • Server wise we are done and the complete code for app.js will look like the following:const express = require(“express”);const http = require(“http”);const socketIo = require(“socket.io”);const axios = require(“axios”);const port = process.env.PORT || 4001;const index = app = express();app.use(index);const server = http.createServer(app);const io = socket = { console.log(“New client connected”), setInterval(…

Tags: server, socket.io, client, const express, socket

  • December 14th, 2017 — Ottawa, Ontario — You.i TV, a global leader in video app experience platforms, today announced that it is extending the benefits of the React Native development framework to streaming devices, consoles and smart TVs, dramatically increasing the utility of the Facebook-backed open source JavaScript project.
  • At CES 2018, You.i TV will show how You.i Engine One can bring superior user experiences to 10-foot platforms – including Roku – using the same code portability and efficiency that React Native enables on mobile platforms.
  • You.i TV’s core technology eliminates a key issue in how React Native provides abstractions to operating system native controls for iOS and Android: the need to write different code for different platforms.
  • By porting React Native to You.i Engine One, developers benefit from You.i Engine One’s single codebase approach, performance and workflow, so they can create graphically and functionally superior apps.
  • About You.i TV – – You.i TV is a privately held company whose You.i Engine One software platform enables TV and media companies worldwide to engage users, create customers, and ultimately fans.

Tags: You.i TV, React Native, You.i Engine, React Native development, You.i Engine-powered TV

  • I mean global APIs.component=f(props, state, context, fetch, localStorage, window size)Testing React components is a constant challenge, but very few talk about The Struggle.
  • Basic stuff.Try sending this component to a test renderer and this is what you’ll get:Could not find “store” in either the context or props of Connect…ReferenceError: fetch is not definedReferenceError: localStorage is not definedTo which our usual response is Oh Lawd have mercy!You could argue that a serious app would…
  • The component can react properly to some props, and mapStateToProps can return correctly based on some state, but the exported component will still fail if the props from the former test get out of sync with the return value from the latter.It’s tempting to seek comfort in our neat little…
  • So my question became: How to simplify the test setup and let developers focus on asserting behavior?If only there was an easy way to simulate component states by mocking inputs…Cosmos PlaygroundActually, there is!Cosmos fixtures were designed to mock every input and render components under any combination of state.
  • { props: {} url: ‘/dashboard’, localStorage: { name: ‘Dan’ }, reduxState: {}, fetch: [ { matcher: ‘/api/login’, response: { name: ‘Dan’ } } ]}Once you get used to writing these, not only will you get a component-centric dev tool for free, but writing component tests will become easy and fun….

Tags: testing React components, testing UI components, real life components, Official testing examples, Cosmos Test API

  • Today we are going to connect this app to an existing REST API and use the fetched data to display our previously created list of contacts.Over the whole series of articles, we’re going to build a functional contact list with React:Part 1 — How to Create a React App with create-react-appPart 2 — How…
  • This way, the app fetches contacts at the startup and fills our contact list with data.PreparationsIf you don’t have the source code of the previous part ready, you can clone it from GitHub, install the dependencies and start the appgit clone contacts-managergit checkout part-2npm installnpm startThe app is now available…
  • To begin, let’s install axios: In your root directory (where your package.json is) execute the following command line:npm i -S axiosNext, open your App.js and perform the following actions:add the componentDidMount lifecycle method to the App component.import axios from the just installed packageadd the axios GET request to componentDidMount to…
  • Since it is empty, it is the initial State object with a replaced “contacts” property.Finally — Set the new StateNow that we got our data, picked the relevant parts out of it and created a “new” State object, we store it in the State of the App call, puts the “newState” object as…
  • Also, you learned that if you want to fetch data from a server at the startup of the app, you’ll do it in componentDidMount in a suitable component.You also learned, how to set State and that you can pass an object or a function to setState.Last but not least, you’ve…

Tags: rest api, data, app, state, App component

  • To make this happen in reality, the communities of expert developers out there have changed the ruled of the app development by creating super-fast frameworks like React Native and PhoneGap.
  • Most mobile app development companies of today are working on improving their React Native and PhoneGap app development skills so as to gratify the business requirements of every company, entrepreneur, startup and enterprise across the worlds.
  • Belonging to the cross-platform app development, both PhoneGap and React Native frameworks only maintain a single codebase in HTML, CSS and JavaScript web technologies for both iOS and Android, instead of constructing parallel codebases in Swift and Java.
  • Since React Native is all about JavaScript, mobile app development companies need not train their employees exclusively on certain skills.
  • Related Article: The 7 Best Hybrid App Development Frameworks for 2017 – – In sum, those not from the tech world may only believe native Android and iOS apps to be the only solutions to delivering an engaging and feature-rich app experience to the users.

Tags: React Native, app development, cross-platform app development, mobile app development, hybrid app development

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Tags: front-end frameworks, JavaScript mindshare, dominant player, big gains, different libraries

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