A Cue On The Best Websites That Think In React.JS

Here are some React.JS Websites/Web App examples plus why do they prefer React JS all the way along!

By Definition — React.JS is an open-source JavaScript library under an MIT license. It is a highly declarative, component-based, and high-performance platform. It is used for interactive and responsive user interfaces (UI’s) of websites and web apps.

Why use ReactJS — A web developer always wants to optimize their applications to be fast. This becomes a possibility with React JS which essentially has virtual DOM that facilitates fast rendering, to make UI updates as efficient as they can be.

Who uses ReactJS — It is the most popular Frontend Development Library and is being voraciously used by start-ups, SMEs, Large companies, and Enterprises, equally.

Why is ReactJS useful — It can be used to build interactive UI interfaces. Prefer React to build big, fast web applications with JavaScript. It scales fast.

How do React Apps look like — React.JS applications are blazing fast, debug-able, testable, SEO friendly, reusable, and with Virtual DOM.

React.js Popularity — Stack Overflow Survey — 40.14%, Stateofjs.com Survey — 87.49%, and JetBrains Survey — 49%

How does React improve the performance of its applications?

React re-renders the components that are affected by the change in the data they receive (state or props). React runs in the web browser after all the files get downloaded from the website that you visit. Server-side rendering allows executing JavaScript code on the server before sending the files to the user for the first time. This speeds up the page as Google does not need to run JavaScript to read the content of the page.

Why are React websites SEO Friendly?

React developers ensure that Google does not require to use of JavaScript to render the content on the page via Server-Side Rendering (SSR). React enables an app feeling with Single Page which enhances user experience without having to reload every ‘content placeholder’. Earlier Google crawls Bot found it difficult to interpret the page with JavaScript instead of a page with regular HTML code. But Google can now render and index content that requires JavaScript.

Why are React applications easy to debug?

If you have source maps enabled in your app, React apps make use of the React-app preset that prevents any errors in the first place. React applications have browser developer tools that can be accessed by pressing F12 or with “Inspect Element”. Also debugging can happen through Console, Network Tab, and React Developer Tools — redux-logger, redux-devtools, redux-immutable-state-invariant, and rubber-duck debugging.

Which React techniques can optimize app performance?

• Avoid using the index as a Key
• UseEffect() and UseCallback()
• React.memo
• React.Fragments
• Lazy Loading
• Progressive Images
• JS Animations instead of CSS Animations
• Production build

What are the basic React components?

• Basic Inputs — Button, ButtonGroup, Checkbox, Input, Slider, Radio, Textarea, FormControl
• Navigation — Breadcrumbs, Header navigation, Link, Pagination, Side Navigation, Tab
• Other Components — JSX, Rendering elements, Components and Props, State and Lifecycle, Handling Events, Conditional Rendering, Lists and Keys, Forms, Lifting State Up, Composition vs. Inheritance

ReactJS Website Examples

• Csdn.net
• Apple.com
• Alibaba.com
• Cnn.com
• Udemy.com
• Aliyun.com
• Upwork.com
• Wix.com
• Zoho.com
• Homedepot.com
• FaceBook
• NetFlix
• Dropbox

Other micro-format use-cases of ReactJS include: Open Graph, Twitter Cards

React.JS Features

• Main Applications — Facebook, Instagram
• Is it extensible — Yes
• What is the speed — 310 milliseconds
• DOM — Virtual, only renders changed data with a patching mechanism.
• Architecture — View components of the MVC architecture.
• Learning Curve — Easier to start, contains a simplified API and syntax.
• Structure and Components — Same, but can integrate HTML, with JS using JSX.

ReactJS Benefits

It takes very little to get started with ReactJS development. React Applications are vouched for their flexibility, better performance, enhanced usability features to use the applications on both the clients and server-side.

Chin Up React.JS Developers

Angular.JS can be used along with React.JS for larger web application projects. Angular.JS for the Model and Controller, and React for the View. React.JS can be a little more typing, a little more coding between the lines, but the result is less difficult to read. This explicitness, conciseness, and modularity become helpful in case you build large libraries of components.

As the popularity of IPTV boxes grows, people are wondering what the best IPTV box on the market is. It was discussed a few months ago. However, at the end of January, Formuler, one of the IPTV production giants, launched the Formuler Z8 Android IPTV Box. The successor to the acclaimed and popular Formula Z7 has arrived. Finally, we did a detailed review.

Review of the old Z8

There are many questions I would like to answer in this post, but they were all in my head while trying out this device.

Is Formuler Z8 Pro better than its big brother Z7 and the recently released MAG 322? Is the sale price worth it? Are there any serious design flaws? Will your specs get me out of the water? And perhaps most importantly, is this the best IPTV box ever made?

Stay with me, and you’ll soon learn the answer to everything more.

IPTV Equipment Purchasing Guide

Before moving on to the review, I’d like to take a moment to explain what you’re looking for in the IPTV box. I have tried some of the most reliable IPTV services, but over time my tastes and expectations have become a bit more difficult each time.

Here are some of the other IPTV set-top box reviews worth checking out:

• MAG322
• Z7 + formulator
• 256 vs. MAG254
• IPTV box

Some people need only the limited functionality of IPTV devices (1080p is fine), but I want to get the most out of the package. A good IPTV box has many technical parameters and quality features at the best possible price.

First, I’m investigating the functions that I took out of the box for the TV screen. If you only have a 1080p display, resolution and frame rate are important because you don’t want to spend extra money on a 4K HDR box. The opposite scenario is also disappointing.

Processor speed

The following list is the processing power. People use TV all the time, so it makes sense to charge it as soon as possible and get everything ready. So what I’m looking for next is a good processor and enough RAM. This will make the display as comfortable as possible.

Internet connection

The next thing I’m looking for is the ability to use the internet. Wi-Fi and Ethernet support is seamless, and additional information about maximum download speeds is always noteworthy. I’m a big fan of external antennas. They provide a great wireless connection.

Software

An IPTV box that runs on Android and supports a variety of apps and streaming services is definitely a plus. It should also work on the latest version of Android. Most importantly, you need to be able to connect instantly to the IPTV streaming portal and support live TV, VOD, and EPG.

One of the less important aspects of these devices is the quality of the build. Precisely constructed enclosures with rugged components help minimize drop damage and extend the life of IPTB enclosures. Also, these need to be part of an entertainment kit, so they should at least look a little flashy.

Summary and features

As you may already know, Formuler is well known in the world of IPTV devices. Many of his models have become bestsellers and have received high praise from around the world. IPTV boxes are known to please those who purchased the first Android device and IPTV veterans who have owned various products in the past. In short, the track record of the Formulator is impressive.

The Formuler Z7 and its improved version, the Formuler Z7 +, have conquered the market with great technical features at an affordable price. Now that the successor to the blockbuster movie has finally arrived, let’s see why the Formuler Z8 stands out.

Prior to using the Internet, small newspaper-covered sections featured advertisements for various products and services. As with the previous series, job ads will also appear on the internet. In this case, like many other classified ads sites, we have our price comparison website bd. This section also includes popular products such as motorcycles, mobile phones, smartphones, cars and accessories, apartments, land and real estate, and appliances.

Where and How to Find Used Smartphones and Accessories

First, you can search our mobile site to see the categories of popular mobile phones. Most people can buy and sell phones from BlackBerry, Sony, HTC, Symphony, Samsung, Walton, Nokia, Realme, Xiaomi and other great brands. Also, POCO F1, Oppo A31, Nokia 2720 Flip, Realme 6i, Xiaomi Realme, etc. please. Even the recently introduced Redmi Note 9 series smartphones.

Check out the links below to buy a reputable second-hand mobile phone.

• Used realm mobile phone
• Used Xiaomi phone
• Old Samsung smartphone
• Used Oppo phone
• Used Huawei phone

If you prefer, you can also search the Internet for the names of good mobile phone users to find information about your area. Before looking for a cell phone or headset of your choice, you can see the best flagship phones released in different years.

In addition to Bangladesh’s job site, used mobile phones are now sold through Facebook. There are some important things to know before buying such a practical old phone. First, it’s more important to check if the phone is a “stolen phone”. For old phones and all their accessories, you need to trade time and money between the buyer and the seller.

Is it wise to buy an old smartphone?

Is it a good decision to buy an old cell phone or smartphone when the old cell phone is damaged or stolen?

If you’re old phone breaks down or is stolen, go to the store to buy another device. The wisest way is to buy an old or used cell phone. You can often buy a used cell phone for much less money. There may be a two-year contract offer to pay for a new phone again, but there are many things to consider.

For those who want to buy a used mobile phone though it is expensive!

Many people sell second-hand mobile phones at affordable prices because some of the internal parts appear to be broken. Most people tell the truth about this. But it doesn’t happen forever, it doesn’t happen to everyone. Therefore, the buyer must purchase the iPhone user’s phone from Samsung or Apple. Then you can buy a nice phone at a good all mobile price in Bangladesh.

Phones that require at least 2GB of RAM must be purchased or sold.

At an affordable price, you can find a cell phone or smartphone with 2GB of RAM. Before buying an old smartphone from a hidden site, make sure the phone has enough RAM. You shouldn’t buy an old phone with less than 1GB of RAM.

You also need to pay attention to the phone processor. The MediaTek processor is quite old and hasn’t improved in terms of performance. Try to get a phone with a Qualcomm Snapdragon or Intel processor. However, the phone’s battery runs out quickly.

Double check your purchase receipt, phone case, charger and other accessories

If the buyer buys an old phone from a promotional site, the buyer must ask the seller for a receipt for the phone purchase. This will prevent your cell phone from being stolen. It also tells you when to buy a phone and its price.

You can also check the IMEI number of the phone from the phone booth. If the seller cannot afford the original equipment, request a lower price. Make sure your cell phone battery is original. If the battery isn’t genuine, it can cause accidents and phone charging problems.

A prerequisite for buying a mobile phone or accessory is to buy and sell with confidence!

It is very important to have a warranty on your phone, as the person who bought the phone will need to use it in an emergency. Many people decide to buy another new phone within a few days of buying a new one. Many people want to sell their old cell phones. In this case, the phone is still under warranty.

React churls up cross-platform application development with its commoving UI’s on the web and ‘near-native’ effect by its native counterpart; let’s learn more!

React churls up cross-platform application development with its commoving UI’s on the web and ‘near-native’ effect by its native counterpart; let’s learn more!

React sweeps up rendering logic with UI logic, handling events, changing states and preparing data for display. React separates concerns instead of artificially separating technologies by putting mark-up and logic in separate files, and loosely couples all “components”. JSX is not mandatory, but it helps as a visual aid, working besides UI within JavaScript code. It facilitates error handling. With that out of the way, you can embed expressions, specify attributes, specify children, prevent injection attacks, and represent objects with JSX.

What should you know to get started?

With a bit of understanding of core Java, Spring Boot, Servlet, Filter, XML, and JavaScript React.JS framework can easily be assimilated into start-up and enterprise application development.

As we scope the use cases and applications of React, JSX is one of the syntax extensions to Javascript. It is used along with React to describe what the UI should look like. It fosters template language, produces react “elements”, and renders them to DOM.

Popular React Application

Metaverse is a collective project that leverages immersive learning, responsible innovation, inclusivity, transparency, empowerment, and accesses technologies, and unlocks opportunities as learners, creators, and developers to build a 3D space to let you socialize, learn, collaborate and play in ways that go beyond what we can imagine. React.JS empowers Metaverse.

React JS with Spring Boot 2.2

Enterprise Java developers use Spring Boot 2.2 and React JS to develop backend RESTful applications using Spring Boot 2.2 and frontend applications using the React JS framework.

To start using Spring Boot 2.2, customize auto-configuration, configure data and CRUD operations, create REST APIs with Spring, secure REST APIs, test Spring Boot Application, create and style React components, consume REST API with React JS, deploy and containerize application.

React JS with TypeScript

TypeScript supports JSX and models patterns used in React codebases like ‘useState’. Next.js and Gatsby also support React in the way TypeScript does. Typescript is a superset of JavaScript and it is not comparable to JSX.

React.jsx is the same as React.js with an upgraded extension. It makes us easier to differentiate between XML, HTML, and JS. TypeScript adds more functionality to plain JavaScript. JSX version is React is better known to compile to vanilla Javascript. It assists in static type checking in case of larger projects, better IntelliSense, debugging support, interoperability amongst JavaScript to TypeScript with renaming from .js to .ts.

React.js and React Native

React.js is an open-source JavaScript-based library for building user interfaces for single-page applications. It handles the view layer for web and mobile apps. It allows using reusable UI components. With react Native you can build mobile apps that are executable on iOS and Android.

React Native is a form of React Javascript library used for creating native mobile apps. It is closely differentiated from PhoneGap (Apache Cordova), and Appcelerator titanium that uses JavaScript to create iOS apps. Unlike PhoneGap, in React Native the code is written in JavaScript but the app’s UI is fully native. It does not have drawbacks that are typically associated with a hybrid HTML5 app.

Functional App Development with React

React’s approach to building interfaces is highly functional, and the UI is a function of the current app state, which is directly proportional to a component’s state change. This improves performance. React re-renders the component and its child component, even when the state change does not directly affect the child component.

Rendering

React wraps functional components in ‘React.memo’ to prevent unnecessary re-renders if the prop it receives never changes.

State Variable

React also implements the functional concept when updating a state variable, especially when a value is based on the previous one.

State Value

React also passes the callback to the updater function, to enable access previous version of the state and update the state value.

State Change

React is a reactive library that reacts to state changes to keep the DOM updated. And we update the state using the ‘setState()’ method in a class component or the updater function in a functional component.

Mutable States

React handles mutable states by making a copy of the state data and computing the output based on the copy. It never modifies the original data.

Prop Arguments

Above everything, functional programming codes in React are pure. It goes by receiving a prop as an argument and computes the output based on the input prop. A pure component can make computations that affect and modifies some state outside of its scope, as in data fetching, and manually manipulating the DOM.

Side Effects

React does not allow performing side effects (updating title to reflect the updated count value) directly inside the body of a component to avoid inconsistencies in the app. It comes with a Hook called useEffect to manage all such side effects.

Conclusion: How do ReactJS development companies roll up React?

ReactJS App development can be formulated in multifarious ways. It can either be with JavaScript, TypeScript, Spring Boot or any other framework, that gels up and leverages React offerings.

1. It starts with autoconfiguration via CLI and actuator,
2. creating, and securing REST API with Spring Boot 2.2 and DevTools,
3. Exploring Spring Boot Auto Configuration and Customization,
4. Creating application profiles based on the environments,
5. Configuring backend data using JDBC and Spring Data JPA,
6. Configuring a DataSource for H2 DB, and also for Maria DB,
7. Designing a REST architecture based application,
8. Creating a REST application using HATEOAS,
9. Consuming REST APIs endpoints with RestTemplate, Traverson, and WebClient,
10. Exploring JWT web token for the RESTful APIs and exploring how to secure REST APIs using OAuth2 and Spring security,
11. Creating TESTING module of the Spring Boot application and Unit & Integration testing,
12. And finally deploying the application to the cloud platform (PaaS).
13. Containerization and Deploy using Docker containers

However, app development companies find it difficult to debug React applications, especially when user experience issues are even more difficult to reproduce. Try using tools to monitor and track the Redux state, that automatically surfaces JavaScript errors, and track slow network requests and component load time.

Originally published at https://generalmagazine.ca on March 4, 2022.