Author: M. Ahmed Fraz,
Why Use ReactJS?
ReactJS has several benefits that make it a popular choice for web development nowadays. Following are a few of the key advantages and features of using ReactJS:
Reusable components are an important element of ReactJS. ReactJS components are generally small, self-contained pieces of code that can be used anywhere across the entire application, making it faster and more efficient in development. ReactJS allows developers to create reusable components that can be used across applications.
This means that each component should focus on a specific aspect of the UI and should be responsible for its own rendering and managing its state separately.
Developers can utilize ReactJS to develop reusable and scalable components that can be reused across numerous pages or applications. This reusable approach can save time and cuts down on the number of lines of code that needs to be written. Reusable components are a fundamental concept in ReactJS, and they are essential for building scalable, maintainable, and efficient applications
ReactJS allows developers to make use of a virtual DOM, which is a lightweight representation of the actual DOM. This process speeds up the functionalities to update the user interface because just the elements of the DOM that have changed need to be updated. The Virtual DOM provides advantages such as faster rendering times, enhanced efficiency, and a better user experience.
The Virtual DOM reduces the amount of work that the browser has to do by minimizing the number of updates to the real DOM, which can improve the application’s overall speed and responsiveness. Besides that, the Virtual DOM can help prevent the occurrence of common issues such as layout thrashing, in which multiple changes to the real DOM cause unnecessary reflows and repaints.
One-way Data Binding:
ReactJS uses a one-way data binding approach, which is easier and more effective to manage the application state. One-way data binding means that data flows in a unidirectional modal, which is either from top to bottom or from the parent component to its child components and so on, and changes in a child component’s state are communicated to the parent component via callbacks.
ReactJS utilizes declarative programming, which means that the developers simply need to declare what they want the application to do, and ReactJS will handle the details. This approach to writing code makes writing clean, maintainable, and reusable code. ReactJS allows developers to describe how the user interface of the application should look based on the current application state.
Declarative Programming is more accessible and user-friendly than the typical imperative approach, which requires developers to declare how the front end should update based on changes in the application state.
Because ReactJS has a large and active developer community, there are numerous resources available for learning and debugging. There are also numerous third-party libraries and tools that integrate with ReactJS, such as Redux for state management and Next. js is used for server-side rendering.
Getting Started with ReactJS:
Set Up Your Development Environment:
To develop ReactJS applications, Node.js and npm (Node Package Manager) must be installed on your computer in order to develop ReactJS applications which are mandatory for the environment. Node.js can be downloaded and installed by using the official website (https://nodejs.org/en/), and you don’t need to install npm separately, it will be installed automatically along with the installation of Node.js.
Create a New ReactJS Project:
Once Node.js and npm are installed on your system, you are good to go, you can use the create-react-app command to start a new ReactJS project, which is the most popular and easiest way to create a new react project. This will automatically create a folder of a new project with all of the required files and their dependencies.
Create a Component:
Render the Component:
You can render the component in the browser after you have created it by adding and importing it into the main App.js file.
State and props can be used to add interactivity to your ReactJS application. The state is used to manage data within a component or in any other component across the application, whereas props are used to pass data from one component to another component.
ReactJS is a powerful and popular front-end framework that makes it easy to build large-scale web applications. Its speed, scalability, and ease of use make it an ideal choice for developers. Getting started with ReactJS is easy, and with a little practice, you can start building your own applications in no time. If you’re new to ReactJS, start with the basics and gradually work your way up to more advanced topics like routing, hooks, and performance optimization.
Overall, ReactJS is a robust and effective library for creating user interfaces, with numerous advantages for both developers and end users. This is why it is more popular nowadays.