Different technologies like Angular, Meteor, Node, etc. are quite popular for designing front-end applications and require a lot of code. React, however, has great significance among all the front-end technologies available at present because of its simplicity, flexibility, responsiveness, etc., It makes developers develop applications with less code. In general, Developers need to hard code on the tasks while developing the applications. React provides a simple framework that can be used to break down the work into components and reuse the code.
Features of React JS: In React, a Homepage is built using Components by divide and Merge Policy. During the development phase the components of the home page are divided into small parts and then merged to get the overall view of the page. The main feature of the React is Virtual DOM, where we can observe One-Way Data Binding. The reason behind the usage of React in the real-world applications is that, while building the applications React makes two copies of the Virtual DOM, instead of directly updating DOM. Both the copies are stored and are compared and when a change is triggered React updates the view directly.
Before we look further into our series of React JS tutorials, let us check out the React JS features properly. This will help us to understand how React JS works.
Features of React JS
- Virtual Dom
- Hooks API
- Declarative UI
- React Native
This characteristic of React helps to speed up the app development process and offers flexibility. The algorithm facilitates the replication of a web page in React’s virtual memory.
A virtual DOM object is a representation of the original DOM object. It works like a one-way data binding. Whenever any modifications happen in the web application, the entire UI is re-rendered in virtual DOM representation. Then it checks the difference between the previous DOM representation and new DOM. Once it has been done, the real DOM will update only the things that have actually changed. This makes the application faster, and there is no waste of memory.
This simply means that the user interface of an app based on React JS is made up of several components, with each of them having its particular logic, written in JS.
Due to this, developers can relay the data across the app without the DOM being impacted. React JS components play a huge part in deciding the app visuals and interactions. These components can be reusable which helps you to maintain the code when working on large-scale projects.
Since the logic for the component is written in JS instead of templates, we can easily pass rich data through the application and keep the state out of DOM. i.e., Developers can rely on the data across the application without the DOM being affected. The Components in React are used to define the interactions and visuals in the applications.
Hooks were introduced from the React latest version 16.8, which was released officially in early February 2019. Hooks were shipped additionally with the API that helps us to use state and other features in React without writing a class.
Hooks are like functions that let you work with the React state and the lifecycle features from the function components directly. The primary idea of using Hooks is that it doesn’t allow a developer to work with Classes, but it provides a smart way of using React in developing applications without Classes. Besides custom hooks can be created for building reusable logic that can be shared across the application.
React’s JSX feature is pretty great in that it helps the developers write the code for the building blocks of React UI. The code is easy to write, and simple to understand and it is an easy way for developers to build applications.
ReactJS is known to be a great performer. This feature makes it much better than other frameworks out there today. The reason behind this is that it manages a virtual DOM. The DOM is a cross-platform and programming API that deals with HTML, XML, or XHTML. The DOM exists entirely in memory. Due to this, when we create a component, we did not write directly to the DOM. Instead, we are writing virtual components that will turn into the DOM leading to smoother and faster performance.
You need to define the app structure at the outset if you are developing a complex, high-load application. It is here that the virtual DOM feature becomes valuable; the DOM structure is like a tree. This means that a small edit made at a top-level layer can hit the app UI hard. Thanks to virtual DOM, all changes can be first tested in it to determine the risk level with every modification before finalizing it.
ReactJS uses JSX files which makes the application simple and to code as well as understand. We know that ReactJS is a component-based approach which makes the code reusable as your need. This makes it simple to use and learn.
A developer just needs to recollect his HTML skills to build the applications and all the remaining CSS styles, Bootstrap functions and even JS functions also will be used in the same html tags easily by importing required libraries. It helps a developer with less code and it is easier to remember. It means rather than writing maximum lines of code to implement a particular functionality, React address the same functionality with the help of functions and components in it.
This feature makes React code more readable and easier to fix bugs. React JS is the best platform to develop UIs that are both exciting and engaging not just for web apps, but mobile apps as well.
Uses native, rather than web components to facilitate native React JS development for Android and iOS.
Basically, this feature transforms React code to render it compatible with iOS or Android platforms and provides access to their native features.