Do you want to learn React but don’t know where to start? Are you confused about the role that JavaScript plays in this process? Do you need to have a comprehensive understanding of JavaScript to use React effectively? These questions, and many others, provide the framework for the controversial topic of whether JavaScript is necessary for learning React.
The use of JavaScript in modern web development is undeniable. According to the State of JavaScript survey, it is the most commonly used language, with 88% of developers reporting that they have used it in their projects. As a result, it is critical to understand its role in React development. React is a JavaScript library that has become exceptionally popular in recent years due to its flexibility and powerful features. Learning React without a thorough understanding of JavaScript may be possible, but it is a much more difficult task as React makes extensive use of JavaScript.
In this article, you will learn about the importance of JavaScript in React development and how it affects the learning process. We will discuss the advantages and disadvantages of learning React with and without JavaScript, as well as the steps you should take if you want to learn JavaScript along with React. Additionally, we will provide resources and tips to ensure that you can make the most of your learning experience. By the end of this article, you will have a clear understanding of the role JavaScript plays in React development and how you can go about learning it.The definitions should be clear for non technical reader.


JavaScript is a programming language used mainly for web development. It is an object-oriented language that is used for creating interactive web pages and applications, as well as for creating games and other dynamic software platforms. It is one of the three core technologies that make up the web, alongside HTML and CSS.
React is a JavaScript library created by Facebook for building user interfaces. It is an open source library that is often used for creating single-page web and mobile applications. It is used by many companies, from small startups to large corporations, to build user interfaces for their applications and websites.
Doing React requires knowledge of JavaScript but it is not necessarily a requirement to have prior knowledge of JavaScript or any other programming language. React enables engineers to create dynamic user interfaces with only a basic knowledge of JavaScript. That being said, having a thorough understanding of the basics of JavaScript, such as functions, objects, and events, is beneficial to fully understanding React and taking advantage of its full potential.

1. Overview of JavaScript

No, you do not need to fully know JavaScript to study React, as the two technologies serve different purposes. React is a JavaScript library with an open-source framework used for developing user interfaces, while JavaScript is a scripting language used to simplify web development.

Learning JavaScript for React

Although knowledge of JavaScript is not required for React, understanding JavaScript will help you understand React better. Becoming familiar with the concepts of JavaScript such as variables, functions, objects, and HTLM DOM will help you program React more efficiently. Moreover, JavaScript syntax can be used in React components for improved functionality, such as solving code challenges and displaying messages in the front end.

Differences Between JavaScript and React

Despite its similarities to JavaScript, it is important to remember that React is not a programming language, but a library for building user interfaces. While it might use JavaScript syntax, React has different concepts and libraries than JavaScript, such as props, components, and unique events. In addition to this, React also has a virtual DOM, allowing you to create database-driven cloud applications with a complex UI.

  • React is primarily used for developing user interfaces
  • JavaScript is a scripting language used for web development
  • Understanding JavaScript will help you understand React better
  • React is a library, not a programming language
  • React has different concepts and libraries than JavaScript
  • React has a virtual DOM allowing for complex cloud applications

2. Understanding React

React is an open-source JavaScript library that is used to build user interfaces or UI components. It is maintained by Facebook and a community of individual developers and corporations. React is not a full-fledged framework but instead is a view library that is used to generate views of your application. React follows component-based architecture, which helps developers to create self-contained, reusable, and isolated components which can be used across different projects.

What Do We Need to Know Before Studying React?

Before jumping into React development, it is important to be familiar with HTML, CSS, and JavaScript. Understanding the key features of JavaScript, such as variables, functions, control structures, objects, classes, and more, is essential for developing React applications. In addition, having a good understanding of modern JavaScript concepts, such as ES6 and ES7, is highly recommended as React application development typically centers around using them. Lastly, having a knowledge base on React tools such as Webpack, Babel, Redux, and create-react-app can help developers optimize their application development process.

What Are the Benefits of Using React?

React excels in creating interfaces and user experiences by offering declarative components and reusable code blocks. The declarative nature of React reduces complexity in creating components as you can simply express the desired output and don’t have to worry about describing how your components should achieve that output. Besides its declarative nature, React also encourages developers to create reusable components and create libraries that can contain components that can be used across applications. This further reduces development and maintenance costs as developers can avoid reinventing the wheel every time they encounter a similar challenge.
React is also very popular for it’s performance due to its virtual DOM which allows its reconciliation process to be much faster than traditional DOM. React abstracts code to reduce redundancy and create code blocks that are more maintainable. Finally, React comes with detailed documentation, an active community, and plenty of tools and libraries to help developers build robust and faster applications.

3. Is JavaScript Knowledge Necessary for Learning React

Learning React, a popular JavaScript library, for website and mobile app development can be an invaluable addition to any programmer’s toolbelt. At the same time, the sheer amount of material one needs to become proficient in React can seem overwhelming. One of the main questions a potential student of React has is whether they need to be experienced in JavaScript in order to learn React.

JavaScript Basics

React is built on JavaScript, so having a basic working knowledge of the language prior to studying React is generally recommended. This helps as React is what is referred to as a ‘declarative’ framework, and knowing some of the workings of JavaScript can make the development from 0 to 1 smoother and easier to grasp. In addition, due to the vast variety of functions and potential options and renderings available with React, the broader base of JavaScript knowledge a programmer has, the easier it is to acquire new material.

More than Just Syntax

JavaScript is a complex language, and working in React requires more than just raw syntax knowledge. It also requires an understanding of concepts like objects, classes, states, props, and virtual dom. React does lend itself well to ‘learning by doing’ though, so for those with a good handle on the fundamentals of JavaScript, trying it and using it are often the fastest way to gain mastery over these concepts.
Overall, JavaScript knowledge is certainly an asset for anyone who is interested in learning React. It does not have to be completely mastered prior to attempting to study React, but having some understanding of the language will be helpful in approaching it. Learning about the different concepts will likely become necessary regardless – but at least with a basic understanding of JavaScript, the student can more quickly come to terms with the logic behind React while developing proficiency.


The debate whether one needs an extensive knowledge of JavaScript before making an attempt to learn React has been a long one. Among developers who invest considerable time in learning React, half come with foundational understanding of JavaScript, while the other half starts learning both during their journey. Thus, the question arises: What is the best approach of learning React?
From this blog, readers can expect valuable insights, step-by-step tutorials, and valuable tips and tricks for those who need help in either mastering JavaScript or learning React. We welcome readers who had initial knowledge of JavaScript or those who want to approach it with React. All readers are encouraged to subscribe to our blog for latest updates and releases.
We understand that even after the real-world projects, projects, dialogues, challenges and code reviews, doubts remain on the minds of many. To make things easier, we’ll provide an FAQ section for our readers, answering the most common questions related to the topic.
Q1. Is JavaScript essential for learning React? It is recommended that one has a strong foundation in JavaScript before starting to learn React, since mastering React without a fundamental knowledge of JavaScript is not An advisable approach. The majority of organizations now look forward to web developers who have mastery over both technologies, making the situation even more challenging.
Q2. How much JavaScript should I know before picking up React? It depends upon the individual and their approach to learning the technology. For most developers, basic concepts such asJavaScript classes, arrow functions, promises, closures and callbacks are more than enough to start with React. If there are doubts on a particular topic, then it is recommended to invest more time in that topic before moving on.
Q3. Are there other ways of learning React without prior knowledge of JavaScript? Yes, it is possible to start learning React without prior knowledge of JavaScript if one focuses on mastering React fundamentals along with the core concepts of JavaScript. It is important to understand that React needs a good understanding of the underlying JavaScript language.
Q4. What is the best way to learn React along with JavaScript? The best approach to learn React is to start with the basic concepts of JavaScript and gradually move on towards building small projects with React. Understanding the fundamentals of JavaScript and integrating them with React is the key to success and it helps in picking up the concepts faster.
Q5. How important is the knowledge of HTML and CSS for learning React? Knowing HTML and CSS is essential for mastering React since it will give an upper hand while working on UI components and styling. Having a good understanding of both HTML and CSS will help in avoiding common bugs and will speed up the process of React development.

Leave a Reply

Your email address will not be published. Required fields are marked *

Previous post What is the difference between JavaScript and React?
Next post Why do I need to write HTML inside React code?