React JS Development

JSX is a markup syntax known for JavaScript XML. It’s very similar to HTML and used to describe the app’s UI’s look and feel. It’s the unique feature that React.Js has something for you to offer. Moreover, JSX allows you to write HTML structures in the same file that contains JavaScript code. This makes the code easier to understand and debut, as it avoids the usage of complex JavaScript DOM structures.

const name = ‘testing’;

const greet = < h1 > Hello, {name} </h1> ;

Well, from the above example, you can understand how JSX is implemented in React. You can definitely conclude that it’s neither a string nor HTML. In fact, it embeds HTML into JavaScript code.

Virtual DOM is one of the most important features, allowing developers to develop a fast and flexible application using ReactJs. It’s a lightweight copy of the “real” DOM. That’s why it’s known as “Virtual” DOM – VDOM. It offers all the properties and characteristics of the original DOM. Its memory reconciliation algorithm allows React to replicate a web page in its virtual memory. Thus, a virtual DOM is the representation of the real DOM.

With every update and modification in the web application, the whole virtual DOM re-renders the entire user interface and is updated. The main benefit of having this Virtual DOM is that only the components that have actually changed are updated instead of updating all the components. Therefore, the whole virtual DOM is updated.

In fact, virtual DOM is much faster and efficient than real DOM. After the update, React.js compares the updated virtual DOM and the pre-updated real DOM. This type of process is known as Diffing.

After checking the comparison between both previous DOM and new DOM, React.Js exactly knows where the difference is. Then the real DOM will update only the things that have actually changed. This makes the React.Js app much quicker and cost-effective.

React.Js is known for its enhanced performance. The actual reason behind its performance is that it uses virtual DOM. Therefore, creating an app using React is always faster and smoother.

In addition, React utilizes one-way data binding with an application architecture called Flux controls. ReactJs lets you update the view for the user and control the application process with Flux. The addition of virtual DOM provides benefits where it compares updated data with the real DOM and automatically updates the view.

Another unique feature that ReactJs offers is one-way data binding. It’s designed in such a manner that follows a one-way data flow. The primary benefit of one-way data binding is that it gives you better control throughout the application. This means it doesn’t allow developers to change any component directly as components are immutable. Therefore, they have to execute the callback function to do relevant changes in the components. This process is generally known as one-way data binding. This feature makes the application more flexible, which enhances its efficiency.

ReactJs has a component-based architecture. In other words, the user interface of a web or mobile app is made up of multiple components. Each component has its particular logic, written in JavaScript. This allows React.Js developers to pass the data throughout the application without the DOM being affected.

Having said this earlier, React.Js is the most preferred technology to develop intuitive and interactive user interfaces for web and mobile apps.

In order to modify the data, ReactJs renders and updates the right components without affecting DOM. Therefore, a simple view for each state of the app is generated. This feature makes React app code more readable and simpler to debug.

React Native is a custom renderer for React.Js. Here, React Native utilizes native components instead of web components. However, a developer should be aware of ReactJs components, such as JSX, components, state and props, to implement React Native app development for the project. Also, it offers access to the native features of both Android and iOS platforms.

The development lifecycle methods are very useful when you implement React.Js development. ReactJS offers various methods to execute at different execution phases.

Here are the lifecycle methods:

• shouldComponentUpdate
• componentDidMount
• componentWillUnmount
• componentDidUpdate

The learning curve of React is quite flexible and easy. Any developer who is familiar with the basic concepts can quickly begin with React.Js. However, once you are thorough with the technology, you can easily build intuitive user interfaces.

React is not a framework but a library. It offers a pool of libraries that are easy to understand. It’s not a complex technology, unlike Angular. Therefore, if you have a good knowledge of JavaScript, you can easily learn React.

“Learn React Once and Write Everywhere” – Reactjs.org

React.Js uses virtual DOM to enhance the performance of the application. It has a level of custom components that are a part of the DOM.

Let’s consider one example here:

When you write a code in HTML, you have to create a block div with an h1 tag. Whereas, ReactJs will create a React.div object containing a React.h1 object. These objects can be handled without getting into the original DOM API. Moreover, your system will know what to do with the real DOM based on the virtual one during the rendering phase.

The new method only renders the objects that need to be changed, unlike the traditional method renders the entire DOM. That’s what makes it efficient and faster.

React.Js offers very feature-rich developer tools like Flux or Redux. Its back-end contains Nodejs. Therefore, Node.Js development solutions will surely take your app’s performance to the next level.

Facebook comes up with several developer tools like React Developer tools and Chrome Developer tools in ReactJs. These tools help developers discover parent and child components, observe their hierarchies, evaluate their existing state, and many more.

The biggest reason to choose React.Js for your next project is, it’s developed by Facebook and supported by a large community. Being an open-source library, React.Js has attracted many developers to leverage their features. Hence, day by day, the community is getting stronger.

Besides, around one thousand contributors constantly work on the library and update it regularly. The entire community is very active on every platform (Quora, Facebook, StackOverflow), so that you can ask your doubts and get them resolved very soon. You will find over 160K questions and answers on StackOverflow. So, if you have any doubts, you can easily find the solution directly from the discussion thread.

Also, the community maintains a blog that consistently gives you detailed information for every release.

If you are still in a dilemma about choosing ReactJs for your project, we have another reason to share.

The React-based apps are search engine friendly.

Nowadays, Search Engine Optimization (SEO) plays an important role in gaining traffic to your website in the digital world.

In the ReactJs website, the backend rendering significantly decreases the load time, making them better optimized for search engines. Furthermore, the advantage of high-speed performance improves overall performance, which impacts search engines.

The major advantage of using ReactJs for web development is React Native. However, developers can swiftly shift to React Native and develop mobile apps with a native UI, since the framework is based on React.Js. In addition, some components of a React web app can be used in a React Native mobile app. This gives you a perfect reason for choosing ReactJs for web development.

There’s a saying – If you live by the Sword, you die by the Sword. Well, it’s true for the ReactJs library. React is constantly evolving and changing itself – which is a drawback for developers.

The rapid development of ReactJs has divided the development world into two divisions. While developers claim that constant evolution has simplified their work, some claim that developers have to relearn things as a result of changes, constantly.

Since it offers rapid development, it might become tough to stay updated with the features for developers. In fact, nowadays, the core API has become more stable. The developers who oppose React are the ones who are not comfortable with the new adoption of tools and technologies. The evolution of ReactJS web development on a larger scale is solely for the sake of the community. It improves the website's performance and elevates it to a new level.

The major problem with poor documentation is the constant evolution and release of the new features. Since React is constantly evolving, it leaves a short time to update the documentation.

The addition of new libraries on a daily basis like Reflux and Redux in the documentation accelerates the documentation process and streamlines the entire ReactJs development cycle. But in the end, developers don’t get their desired result, and they find difficulties with tool integration.

ReactJs uses JSX syntax extension. It mixes HTML syntax with JavaScript objects. Although JSX has some advantages (for example, preventing code against injections), some developers believe it to be a serious drawback because it looks like old spaghetti code. Therefore, developers and designers find it difficult to learn the complexity of JSX.

While implementing ReactJs for the development, you should know that ReactJs emphasizes the UI layer of the app. Therefore, anything related to web development (of course, other than UI) is out of its capability.

Thus, for the ReactJs app development, developers still have to choose some other technologies to balance out its features. However, it doesn’t offer a complete set of tools, when it comes to the perfect web app development.