The Best Guide to Understanding React and Express

React is a front-end JavaScript library. It is an open-source and leading web application framework of JavaScript, and Express is a back-end web application framework of node js. This tutorial on React Express will walk you through all the topics on React Express.

Every application consists of a front-end, back-end, and database. Together, they form full-stack development. In this tutorial, you will cover the topics React and Express.

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What is React js?

React is a JavaScript library that is used to build mobile and web applications fast and interactive. It is an open-source, reusable component-based front-end library of JavaScript. React is a combination of HTML and JavaScript. It provides a robust and opinionated way to build modern applications.

Features of React js

Now that you know what react js is, this section will cover its features. 

  • JSX - JSX is a syntax extension to JavaScript with react. It is used to describe how the UI should look. JSX comes with all the features of JavaScript.
  • Virtual Document Object Model (DOM)- This defines how documents are accessed and manipulated on a web page.
  • Performance - There are several ways to speed up the react application by using virtual DOM because it reduces the re-render time.
  • One-way data-binding - Information flows in one direction. React receives information through arguments and passes it by return values.
  • Extensions - React goes beyond simple UI and has many extensions for complete application support.
  • Debugging - Facebook created a small browser extension to make react debugging easier and faster.

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What is Express js?

Express js is a node js web application framework that provides broad features for building web and mobile applications. It is used to create a single page, multipage, and hybrid web application. Express js is high-performance, fast, unopinionated, and lightweight.

It’s a layer built on top of node js that helps manage servers and routes. 

Features of Express js

Moving ahead in this section, you will cover the features of Express js.

  • Fast server-side development 

Node js's characteristics enable you to save a significant amount of time.

  • Middleware

A request handler with access to the request-response cycle of an application is known as middleware.

  • Routing 

It refers to how the URLs of an application's endpoint respond to client queries.

  • Templating 

It provides templating engines that create HTML templates on the server to create dynamic content on web pages.

  • Debugging 

Express makes it easier by pinpointing the exact location of issues.

Benefits of Using Express js With React js

With express js, you can create an API very easily for the server. ExpressJS includes significant features that let you dynamically create a back-end API. It doesn’t require any third-party dependencies and doesn’t come with any frameworks or plugins. And with the help of React js, you can create a simple application very easily as react components are easily testable. 

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React usually re-use a single abstract component which makes it easier for the developers. React includes a method for transmitting data and states between components. You can easily provide state, props, and setState. React also takes care of state management and resets. As a result, you may divide your UI into many components that reuse elements of the state tree and easily maintain details. React allows you to design huge components fluently and send states as props. Express and React are an ecosystem of JavaScript, and together it does wonders.     

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Next Step

This tutorial has touched base on what react js is, all the features of react JS, what express js is, and all the features of express js, and then you saw the benefits of using express js with react js. You can enroll in Simplilearn’s Node JS certification training to learn more about Express. This certification training course will upskill you on how to use Express.js, NPM, NPM Vet, REST, shrink-wrap, Express.js with MongoDB, and SQLite CRUD operations. This Express JS training focuses on the fundamental ideas of Node JS and Express Js and gives you hands-on experience developing an HTTP server.

If you have any questions or feedback, do let us know in the comments section of the “React Express” tutorial, and our experts will get back to you as soon.

About the Author

Anubhav SharmaAnubhav Sharma

Anubhav is a Research Analyst. He enjoys working on dynamic projects where he can learn new things. He is responsible and diligent. Being a resident of Jammu, he loves nature and exploring new places.

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