Why ReactJS Is More in Demand

One of the most in demand technologies right now is #ReactJS



#WebDev #javascript  #WebApp

  • As stated already, the most compelling feature of React is that it reduces the complexities of user interface.
  • If the mechanism that we are trying to interface can comprehend Javascript, we can use React to build the user interface for it.
  • You describe the user interfaces in React languages and tell it what you want, it will take care to translate your description and prepare the actual interface.
  • You will illustrate user interfaces to React with simple components.
  • When state of a component changes, its User Interface will change automatically.

ReactJS is a JavaScript library for building user interfaces. According to Google Trends data last 5 years in increased popularity of ReactJS development and we explain why ReactJS is more in demand.
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Coming in WebUI 8.0.0 WebUI ship list so far. Can be downloaded from repo now. #ux…

  • Add responsive behaviour exactly where you want it, with the flexibility to create fixed non-responsive layouts or layout sections.
  • WebUI includes a flexbox module as well as a traditional grid system by default, as it is recommended to make use of both to provide maximum flexibility and browser support.
  • WebUI uses a 20 column grid system to create grid layouts.
  • Here is a quick example of a shared layout structure with a container and some rows and columns: – – The respond-bp-3-under class on the columns will cause the form to re-render for a mobile screen size at the medium breakpoint.
  • Responsive gutters can be used with any container type or on any row type, but should not be used directly on columns, so there is no problem with placing containers inside columns and applying responsive gutters to the containers.

GitHub is where people build software. More than 27 million people use GitHub to discover, fork, and contribute to over 80 million projects.
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WebUI ship list so far.

Can be downloaded from repo now.

#ux…”

Learn how to code with ReactJS for less than $40

Learn how to code with ReactJS for less than $40

  • Whether you’re building the next million dollar app or social media platform from scratch, adding personal touches to your blog, or troubleshooting an everyday tech problem, it’s useful in just about every industry.
  • Fast, easy, and scalable, React is a JavaScript library that can be easily used to build user interfaces on both standalone pages and mobile apps — and is often used for apps that have constantly changing data (e.g., Facebook).
  • With eight courses and over 40 hours of content, this bundle of online classes is designed to teach you the nuts and bolts of writing apps with React.
  • You’ll learn the foundations of using ReactJS from scratch as well as how to use it in conjunction with other platforms like Redux, Flux, and React Native.
  • This bundle welcomes beginners and experts alike, so it’s perfectly fine to brush up on your coding skills or be a total noob and ask tons of questions.

With eight courses and over 40 hours of content, this bundle is designed to teach you the nuts and bolts of writing apps with React.
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Understanding React — Component life-cycle – Bartosz Szczeciński – Medium

Understanding React — Component life-cycle

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#Reactjs #programming

  • In all other instances remember to use this.setState – DO – set initial stateif not using class properties syntax — prepare all class fields and bind functions that will be passed as callbacksDON’T – cause any side effects (AJAX calls is a somehow special case — componentWillMount does not differ much from constructor -…
  • DO – update state via this.setStateperform last minute optimizationcause side-effects (AJAX calls etc.) in case of server-side-rendering onlyDON’T – cause any side effects (AJAX calls etc.) on client function will be called in each update life-cycle caused by changes to props (parent component re-rendering) and will be passed an object…
  • DO – use for increasing performance of poor performing ComponentsDON’T – cause any side effects (AJAX calls etc.)call nextState)If the shouldComponentUpdate function is not implemented, or it decided that the component should update in this render cycle, another life-cycle function will be called.
  • == this.props.myProp) { – // this.props.myProp has a different value – // we can perform any operations that would – // need the new value and/or cause side-effects – // like AJAX calls with the new value – this.props.myProp – } – }DO – cause side effects (AJAX calls etc.)DON’T…
  • DO – cause side effects (AJAX calls etc.)DON’T – call this.setState as it will result in a re-renderAn exception to the above rule is updating the state based on some DOM property which can be only computed once a component has re-rendered (e.g. position / dimensions of some DOM nodes)….

React provides developers with many methods or “hooks” that are called during the life-cycle of an component, which allows us to update the UI and application state. Knowing when to use which of them…
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Top 10 Sites Built With ReactJS

Top 10 popular websites built with #ReactJS



#webdev #javascript #webapp

  • Airbnb is an America-based company known for operating an online marketplace that offers hospitality service to people looking to rent or lease short-term lodging facilities such as apartments, holiday cottages, hostel beds, homestays or hotel rooms and facilitate experiences or participate in tourism concepts like walking tours and theme tours…
  • It collects and presents content from news feeds, social media and photo sharing sites as well as various other websites and offers it in a magazine format, allowing users to simply “flip” or turn over the “pages” through the articles, journalistic pieces, images and videos that are being shared.
  • Netflix is an American entertainment company that specializes in online streaming media services, DVD by mail and online video-on-demand facilities.
  • The site often offers viral images and memes that enjoy considerable popularity in the online world and social media.
  • The company regularly works as payment processor for various auction sites, online vendors as well as various other commercial users.

ReactJS is used for building user interfaces and used in the development of single-page applications & mobile applications. Nowadays Reactjs have more demand and we explain top 10 popular websites build with Reactjs.
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How to handle state in React. – React Ecosystem – Medium

How to handle state in React. The missing FAQ.

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#Reactjs #javascript

  • Each one corresponding to the way you create the component: – // Using React.createClass – var Counter = React.createClass({ – getInitialState: function() { – return {counter: 0}; – }, – …});// Using ES6 classes – class Counter extends React.Component { – constructor(props) { – super(props); – this.state = {counter: 0};…
  • Let’s exemplify: – // Don’t duplicate data from props in state – // Antipatternclass Component extends React.Component { – constructor(props) { – super(props); – this.state = {message: props.message}; – } – – render() { – return div{this.state.message}/div; – } – }The problem with the above example is it will only…
  • You can do better just by avoiding this situation: – // Better exampleclass Component extends React.Component { – render() { – return div{this.props.message}/div; – } – }The same applies when you hold state based on props calculation: – // Don’t hold state based on props calculation – // Antipatternclass Component…
  • // Antipatternclass Component extends React.Component { – constructor(props) { – super(props); – this.state = {count: 0}; – } – – render() { – return div{this.state.count}/div; – } – – componentDidMount() { – const interval = setInterval(() = ( – this.setState({count: this.state.count + 1}) – ), 1000); this.setState({interval}); – } componentWillUnmount()…
  • Let’s experiment a little bit to see what happens: – class Component extends React.Component { – constructor(props) { – super(props); – this.state = {count: 0}; – this.onClick = this.onClick.bind(this); – } – – render() { – return div } – – onClick() { – this.setState({count: this.state.count + 1}); – }…

Recently there has been a lot of debate about how to manage the state in React. Some claim that setState() doesn’t work as you might expect. That you have to externalize the state using a Flux-like…
Continue reading “How to handle state in React. – React Ecosystem – Medium”

Redux vs MobX: Which Is Best for Your Project?

Redux vs MobX: Which Is Best for Your Project?

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#Reactjs #javascript

  • I’ve migrated this CRUD Redux project to MobX to use as an example in this article.
  • The code for the projects mentioned in this article can be found on GitHub: – – If you enjoy this post, you might also like to sign up for SitePoint Premium and watch our course on working with forms using React and Redux.
  • If you prefer writing object-oriented code, you’ll be pleased to know you can use OOP to implement state management logic with MobX.
  • Believe it or not, the logic defined in both versions do the same tasks, which are: – – In Redux, we’ve used 33 lines of code.
  • A major benefit of the MobX version is that you can reuse the base code in almost all the domain store classes with little or no modification.

For a lot of JavaScript developers, the biggest complaint with Redux is the amount of boilerplate code needed to implement features
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Celebrating a Joyful JavaScript Certification

  • Although I had taken few online courses on JavaScript, I always lacked confidence in my JavaScript skills, because I had learned the language from a variety of sources and felt that there were several gaps in my JavaScript understanding.
  • Furthermore, as far as my freelance programming experience goes, I can tell that JavaScript developers are always busy, since they get the most freelance jobs (when classified by programming languages for web development).
  • However, since I already had a decent experience with JavaScript, I didn’t want to go through another course to earn a certificate (furthermore, I already had such certificates).
  • So I soon loaded up the JavaScript certification exam page for details about cost and exam process.
  • The first part of the exam was a theoretical test containing 20 single and multiple choice questions, each of which had a time limit of 1.5 minutes.

This post tells the story of my JavaScript certification preparation and success.
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Understanding React — Component life-cycle – Bartosz Szczeciński – Medium

Understanding React — Component life-cycle

☞ 

#reactjs #JavaScript

  • In all other instances remember to use this.setState – DO – set initial stateif not using class properties syntax — prepare all class fields and bind functions that will be passed as callbacksDON’T – cause any side effects (AJAX calls etc.)componentWillMountThis is a somehow special case — componentWillMount does not differ much from constructor…
  • DO – update state via this.setStateperform last minute optimizationcause side-effects (AJAX calls etc.) in case of server-side-rendering onlyDON’T – cause any side effects (AJAX calls etc.) on client function will be called in each update life-cycle caused by changes to props (parent component re-rendering) and will be passed an object…
  • DO – use for increasing performance of poor performing ComponentsDON’T – cause any side effects (AJAX calls etc.)call nextState)If the shouldComponentUpdate function is not implemented, or it decided that the component should update in this render cycle, another life-cycle function will be called.
  • == this.props.myProp) { – // this.props.myProp has a different value – // we can perform any operations that would – // need the new value and/or cause side-effects – // like AJAX calls with the new value – this.props.myProp – } – }DO – cause side effects (AJAX calls etc.)DON’T…
  • DO – cause side effects (AJAX calls etc.)DON’T – call this.setState as it will result in a re-renderAn exception to the above rule is updating the state based on some DOM property which can be only computed once a component has re-rendered (e.g. position / dimensions of some DOM nodes)….

React provides developers with many methods or “hooks” that are called during the life-cycle of an component, which allows us to update the UI and application state. Knowing when to use which of them…
Continue reading “Understanding React — Component life-cycle – Bartosz Szczeciński – Medium”

Building AR & VR Applications using React Native

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These are my slides from the React Amsterdam talk on building Augmented Reality & Virtual Reality applications using React Native & Viro Media
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