Software development

Componentizing our React app Learn web development MDN

As you become more proficient with JavaScript, you will find that it is a very dynamic language and looks different from the typical object-oriented languages. Now you will discover new features that make developing simpler and faster than older JavaScript capabilities. Explore how to access the React web framework user interface (UI) library and run a simple React application.

react web development

UseEffect() is great for adding logs, accessing 3rd party APIs, and much more. React will only re-run the side effect if one of the items in this array changes. All without blocking the UI rendering, even on blocking code.

Before React, most frameworks and libraries would update the DOM unintelligently to reflect a new state. This resulted in changes to a significant portion of the page. In some cases, you don’t even need to create your components. There are lots of free and mature component libraries already available online. Traditional frameworks like Angular and Vue power up the HTML.

Why React?

As your application grows, you might want to consider a more integrated setup. There are several JavaScript toolchains we recommend for larger applications. Each of them can work with little to no configuration and lets you take full advantage of the rich React ecosystem. There are wide variety of JavaScript testing frameworks available on the web that you can use to test React.js (since it’s also a JavaScript library). Some popular testing frameworks are Mocha, Jasmine, Tape, QUnit, and AVA. Also, since most applications are being used on mobile devices they need to be highly efficient.

The above reasons more than justify the popularity of the React library and why it is being adopted by a large number of organizations and businesses. You should also have some experience with the new JavaScript features

introduced in ECMAScript 6 (ES6), you will learn about them in the React ES6 chapter. Open your terminal in the directory you would like to create your

Thinking in React

application. Enter the correct ReactDOM method to render the React element to the DOM. Our “Show React” tool makes it easy to demonstrate React. Two million developers from all over the world visit the React docs every month.

react web development

React arguably has a heavy tooling requirement, but it can be learned. React Native is perfect for giving your mobile apps a native feel, just as Reactjs is ideal for building apps with higher efficacy and complications . React goes beyond just being a UI framework; it contains many extensions that cover the entire application architecture. It helps the building of mobile apps and provides server-side rendering. Learn about new features like Hooks and Redux to write complicated components.

Can I learn about React by taking online courses on Coursera?‎

If you are unsure which version of npm you have, run npm -v to check if you need to update. This content has been made available for informational purposes only. Learners are advised to conduct additional research to ensure that courses and other credentials pursued meet their personal, professional, and financial goals. To get into the chatbot development, you’ll need to have a good command of these programming languages. This code tells React to render the results in the HTML element that has the root id. The div element that has the root id is where the whole React app will run.

You can even create Desktop applications using a tool like Electron, which can run on mac and windows with React.js technology. Once you have learned it, you can use it on a vast variety of platforms to build quality user interfaces. Its library approach has allowed React to evolve into such a remarkable tool. With React Native, developers can apply web-based React principles to creating mobile apps for Android and iOS. Here, React is used to connect the mobile user interface of the application to the phone’s operating system. React lets you build user interfaces out of individual pieces called components.

Read data from a file or a database, and pass it down to your interactive components. React components receive data and return what should appear on the screen. You can pass them new data in response to an interaction, like when the user types into an input.

Learn how to apply CSS in a React application, with plain CSS or Styled Components. I want to give you some pointers now, because it’s easy to get lost in the sea of tutorials and courses about React. Mastering the topics explained in this article is a great step towards your goal of learning React.

react web development

It lets you put components together, but it doesn’t prescribe how to do routing and data fetching. To build an entire app with React, we recommend a full-stack React framework like Next.js or Remix. If you prefer to learn by doing, check out our practical tutorial. You might be tempted to skip it because you’re not into building games — but give it a chance. The techniques you’ll learn in the tutorial are fundamental to building any React apps, and mastering it will give you a much deeper understanding.

And the script tag below that is where all the React code will go, which we’ll look at in more detail next. Using script tags, we import the JavaScript libraries necessary for React to run. React and React DOM are the basic React libraries we need. Babel is a JavaScript library that compiles the JSX language that React uses into JavaScript the browser can understand. Components in React are also reusable, which means you can use one button component for every button on your site. If you need the button to look different, you can simply change its style.

What is React

This is great because you will never have an outdated version on your system, and every time you run it, you’re getting the latest and greatest code available. This book is especially written for JavaScript programmers who are new to React. These topics will be the base upon which you will build in other more advanced React tutorials. After a decade-long career as an orchestral cellist, here’s how Zach Mansell became a software engineer. Chinmayee is a Research Analyst and a passionate writer. Being a technology enthusiast, her thorough knowledge about the subject helps her develop structured content and deliver accordingly.

  • In addition, many of the developer-experience benefits of a React app, such as writing interfaces with JSX, require a compilation process.
  • There are lots of free and mature component libraries already available online.
  • As you become more proficient with JavaScript, you will find that it is a very dynamic language and looks different from the typical object-oriented languages.
  • These can provide structured learning with industry experts and career credentials.
  • Front-end development includes content structurization, visual style, and interactive user experiences (UX).
  • When compared to other technologies on the market, React is a new technology.

In React, or in any other components-based framework/library, all our applications are based on and make heavy use of components’ state. An application built using React, or one of the other popular frontend frameworks like Vue and Svelte for example, is built using dozens of components. It promotes several good development practices, including code reusability and component-driven development. It is fast, it is lightweight, and the way it makes you think about the data flow in your application perfectly suits a lot of common scenarios.

Everything is digitized, from booking cabs to ordering food to make bank transactions. Thanks to the efficient frameworks that provide a seamless user experience. This tutorial on ‘what is React’ will help you understand the library’s fundamentals and work with a simple demo. It is a library that allows us to create native mobile apps in Android and iOS using React.js.