How to Get Started With React A Beginner’s Guide

Notably, Hooks do not work inside classes — they let developers use more features of React without classes. While getting started, we can choose to delete one and use only one CSS file. This is where all of your components will eventually meet. The name of the file isn’t important, but it’s good practice to keep this name so that other developers can understand your code. If you are interested in learning how to create a React app manually without create-react-app, you can check out this guide.

  • What you need most is a map or guide to help with your travels.
  • Nowadays, there are a lot of great resources available for learning React, so many that it is difficult to determine which are current and useful.
  • Here’s a basic tutorial on lazy loading in React to get you started.
  • Knowing how it works under the hood will help you with debugging.
  • It includes all of the essential information in this article as a convenient PDF guide.

This selective rendering provides a major performance boost. ReactJS’s virtual DOM is a lightweight representation of the actual DOM. By using a diffing algorithm, ReactJS efficiently updates only the necessary parts of the DOM, significantly improving performance. This approach minimizes unnecessary re-rendering and ensures a smooth user experience, especially in large and complex applications. With proficiency in React developer tools, you can manage your application throughout development. For example, Redux is an open-source state management library.


Learn how to make React components interact with one another. Our “Show React” tool makes it easy to demonstrate React. Then combine them into entire screens, pages, and apps.

react web development

And if you need an overall beginner’s guide to solidify these concepts, here’s an in-depth React Handbook to get you started. Let’s now focus on what you need to learn at the minimum to start enjoying React in practice. These are foundational pieces, so make sure to give enough time and hands-on effort to truly understand the concepts.

Unidirectional data flow

This approach we’ve been talking about is very different than reading a book or article. If you do 8-10 pomodoros of solid work, you will have a very productive day, guaranteed. I use this technique every day I code and it is the best technique to ensure consistent results day-in and day-out. Consistent results are the only thing that is going to make the difference between learning React in months versus a year or more. You start your timer and after each period, or pomodoro, you take a five minute break. Adjust your focus away from your computer or your phone.

These are properties passed by its parent to specify values. Render method – In its minimal form, a component must define a render method that specifies how the component renders to the DOM. Nested Components – A component can contain several other components. Now that you know the key features of React, let’s move on to understanding the pillars of React. DOM treats an XML or HTML document as a tree structure in which each node is an object representing a part of the document.

React Hooks

Create-react-app is the best way to start building a new single-page application in React. React is a JavaScript library for building user interfaces. Learn what React is all about on our homepage or in the tutorial. ReactJS allows the user interface logic to couple with rendering logic, events, handling state changes, and more.

“Only Call Hooks from React Functions” — Don’t call hooks from plain JavaScript functions so that stateful logic stays with the component. This content has been made available for informational purposes only. Learners are advised to conduct additional research to ensure that courses What is React and other credentials pursued meet their personal, professional, and financial goals. React developers may be responsible for UI elements such as icons, images, and gesture-driven features. Examples of gesture-driven features include swiping, long-pressing, and drag-and-drop.

🟢 State Management in React

If you have a problem once, I can almost guarantee that you will run into the same problem sometime in the future. Recording your questions and answers will not only serve as a great resource, but also save you large amounts of time and frustration. Whenever I have a problem with a React project that I need to solve, I write it down and search for the answer. When I find the solution to it, I make sure to record the answer and bookmark it in my browser for future reference.

react web development

Include links to each project on your resume as well as a description of the app and the technologies you used to build it. Doing so will immediately show the value that you can bring to potential employers. Reading or consuming information alone is called passive learning and is much slower. Be aware that it’s fine to search the web when you have a question or when you’re stuck in your coding. It’s what all React developers do by searching sites like StackOverflow or Github. The possibilities are endless and will drive your learning forward.


Instead of reading a book and being told what code does, run the code yourself. To test the boundaries of React and what it can do is the best thing possible to understand how it works. To create a new React app in two seconds, go to

react web development

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. You need to learn how to use the fetch API or libraries like node-fetch and axios to interact with APIs and handle data in your component. If you are just getting started with ReactJS, you should understand life cycle management for functional components. You can do this using the in-built hooks like useState, useEffect, and so on. It is a library that allows us to create native mobile apps in Android and iOS using React.js.

React Has Broader Community Support, Too

Many people, including myself, like React for its simplicity, flexibility, performance, usability, virtual DOM, components, and many other features. Below, we have another component that uses our Heading component. In fact, it uses it three times to create headings with different values. Note that the props in React are passed to child components as attributes of the JSX. The function returns the value attribute of props wrapped with what looks like an HTML h1 tag. It’s called JSX, a React-specific syntax that allows HTML-like text to co-exist with JavaScript.

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