Why is ReactJS better than JavaScript? (2023)

Why is ReactJS better than JavaScript? (2023)

JavaScript has been around for over two decades and is the go-to programming language for web development.

However, in recent years, ReactJS has emerged as a popular JavaScript front-end library that has taken the world of web development by storm.

But what makes ReactJS better than JavaScript?

In this post, we will dive deep into the benefits of ReactJS and answer all your questions.

We will also cover ReactJS key differences with JavaScript and why it's gaining traction among Javascript developers worldwide.

We will also discuss some disadvantages of ReactJS and when it should be used or avoided.

So buckle up and learn everything you need to know about ReactJS!

What is React JS?

React JS is a JavaScript library for building user interfaces and better user experience.

Facebook originally developed it and is now maintained by a community of developers.

It enables the creation of reusable UI components, improving development efficiency.

React also uses a virtual DOM for faster rendering and better performance.

React vs. JavaScript: Key Differences

Developers often work with React instead of plain JavaScript when building user interfaces or web applications.

With its focus on easy management of complex UI components and improved performance through a virtual DOM, React has become a popular choice for many.

Additionally, React has gained popularity due to its large and active community, which provides great resources and support for those using the library.

Why choose React over JavaScript?

React is a library for creating user interfaces, while JavaScript is a programming language for web development.

React's virtual DOM and component-based architecture make managing and reusing code more efficient and easier.

Additionally, its large community and documentation provide extensive support.

As a result, choosing React can lead to faster development times, improved performance, and better code organization.

What is the virtual DOM?

Virtual DOM is a crucial aspect of React.

It enables faster updates to UI by only refreshing the necessary page parts, whereas traditional JavaScript requires reloading the whole page.

This feature improves efficiency and speed in web development.

Why is component-based architecture useful?

The component-based architecture of React breaks down complex user interfaces into reusable components, making code management and maintenance easier while reducing errors.

It also enables faster development and team collaboration.

Conversely, JavaScript is versatile but may need more organization compared to React's approach.

How do reusable components work?

In ReactJS, reusable components create modular and independent UI (User Interface) that developers can reuse across different parts of an application or in multiple projects.

These components are typically written in JavaScript and utilize React's component-based architecture.

Key Steps:

  • Define the component
  • Identify props
  • Render the component
  • Utilize props
  • Reuse the component

What are the benefits of handy developer tools?

React provides developer tools that simplify code debugging and troubleshooting.

These include extensions like React Developer Tools for inspecting component hierarchies and modifying props.

Additionally, its error handling system offers detailed messages to identify issues quickly.

What is the potential of mobile app development with React?

Developers can build mobile apps through React Native for iOS and Android.

React Native's quicker development times, and superior performance make it an attractive alternative to traditional JavaScript-based mobile app development.

Code reuse saves time and effort in maintenance.

Using React Native for mobile app development can streamline the process, improve app performance, save time, and speed up development timelines.

How easy is it to learn and use React?

Developers with prior experience with JavaScript and web development generally find React easy to learn and use.

Disadvantages of Using ReactJS

It does come with several disadvantages.

For instance, one of the most significant drawbacks of using this library is its steep learning curve.

In addition, as ReactJS primarily focuses on the client-side framework and virtual DOM rather than server-side rendering, optimizing for search engines can be difficult.

Key Points:

  • The steep learning curve for beginners
  • Rapidly evolving ecosystem
  • Not suitable for SEO (Search engine optimization)

What challenges can arise with SEO?

ReactJS is primarily a client-side JavaScript library, meaning the web page's initial rendering occurs on the client's browser.

It can be problematic for SEO because search engine crawlers may have difficulty understanding and indexing the content rendered on the client side.

When Should ReactJS Be Used?

ReactJS is a popular JavaScript library that is well-suited for various scenarios like:

  • Building user interfaces (UI)
  • Single-page applications (SPAs)
  • Large-scale applications
  • Cross-platform development
  • Collaborative development
  • Performance optimization
  • Component libraries and UI frameworks

What Projects Should Avoid ReactJS?

In certain scenarios, using ReactJS might not be the most suitable choice.

Here are some projects that might consider alternatives to ReactJS:

  • Simple static websites
  • SEO-centric websites
  • Tight deadlines and small projects
  • Projects with limited interactivity
  • Projects heavily reliant on server-side technologies
  • Compatibility constraints

What is the solution to SEO in ReactJS?

You can use the NextJS framework, a full-stack ReactJS framework for building web applications.


In conclusion, React JS is an efficient and effective library that offers many advantages over vanilla JavaScript.

With its virtual DOM, reusable components, simplified scripting, faster rendering, and mobile app development potential, it ensures a seamless user experience.

It also provides handy developer tools to make coding more straightforward and efficient.



Is React a programming language or a library?

React is a JavaScript library, not a programming language.

What are some popular companies that use React for their web development?

React is a popular choice for web development among big players like Facebook, Instagram, Airbnb, and Netflix.

How easy is it for someone familiar with JavaScript to learn React?

Having a JavaScript background can make learning React easier, but its unique concepts and syntax may require some time to grasp. However, beginner-friendly resources like tutorials and documentation are available.

What is JSX, React's Associated Language?

JSX is a language extension for JavaScript that lets developers write HTML-like code in their JavaScript files.


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