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What is React?

React is a JavaScript library that empowers us to craft highly responsive, visually engaging user interfaces for web applications. It supports front-end development by enhancing user experience while ensuring faster, more efficient rendering of content.

React is an open-source JavaScript library primarily maintained by Facebook (now Meta). It's designed for building user interfaces, particularly for single-page applications where UI updates are frequent. React follows a component-based architecture, allowing developers to create reusable UI components that encapsulate a piece of the application's UI.

In terms of its evolution, React has seen numerous updates and improvements since its initial release. Its community-driven development ensures ongoing enhancements, bug fixes, and performance optimizations. React embraces modern JavaScript features and syntax, enabling developers to write code in a declarative and maintainable manner.

The current state of React

Originally developed by Facebook (now Meta) for its internal use, React has evolved into a widely adopted open-source JavaScript library for building user interfaces. Since its inception, React has undergone significant transformations, becoming a cornerstone in modern web development.

In recent years, React has gained momentum as a preferred choice for building dynamic and interactive front-end interfaces for web applications. Its popularity has surged beyond its origins, with major companies such as Netflix, Airbnb, Dropbox, and Instagram leveraging React to power their user experiences.

In terms of performance, React has demonstrated remarkable efficiency, particularly in handling UI updates. Its virtual DOM mechanism minimizes unnecessary re-rendering, resulting in smoother user experiences and optimized resource utilization.

React competes with other popular front-end frameworks and libraries such as Angular, Vue.js, and Svelte. Each technology has strengths and weaknesses, and the choice between them often comes down to factors such as familiarity, project requirements, and performance considerations. However, React distinguishes itself with its simplicity, flexibility, and strong ecosystem support.

The first version was released in 2013, which means it’s mature and thoroughly battle-tested. Developers love React because it’s based on a few simple principles but still allows you to easily and, most importantly, quickly build and deliver everything you can imagine.

Frontend App Development

LeanCode is an Expert in React web development

At LeanCode, we assemble a talented team of Frontend Developers who specialize in crafting engaging user experiences for web applications and web portals across diverse industries. Whether it's creating visually stunning interfaces, implementing complex frontend logic, or optimizing website performance, our Frontend Developers are dedicated to delivering results that drive user engagement and achieve business objectives.
Meet our expert

Let's schedule a 20 minute talk

Łukasz Kosman, CEO LeanCode

This is the initial scoping call. Its purpose is to get a better understanding of what you want to build. After this call, you will have an idea about your project's feasibility and the ballpark estimates.

Łukasz KosmanCEO at LeanCode

React has a strong ecosystem

React has a vast ecosystem of libraries and tools built around it, offering solutions for a wide range of tasks such as state management, routing, form handling, testing, and more. This abundance allows developers to find pre-built solutions to common problems, saving time and effort in development. React's ecosystem is also designed to work well with other libraries and frameworks, enabling developers to integrate React into existing projects or use it alongside other technologies as needed. This flexibility makes React a versatile choice for building web applications.

What are the advantages of React app development?


Backed by Facebook/Meta

Facebook/Meta develops and maintains React, which gives developers confidence that the framework is well-supported and actively developed. They continue to invest in React and adopt it in numerous Facebook products.


Performance Optimization

It is designed with performance in mind. By leveraging techniques like the virtual DOM and efficient reconciliation algorithms, React minimizes unnecessary DOM manipulations and ensures optimal rendering performance, even for large applications.


Component-Based Architecture

React's component-based architecture allows developers to break down complex user interfaces into reusable, self-contained components. This promotes code reusability and maintainability while facilitating efficient development workflows.


Well-suited for complex Design Systems and UIs

Its component-based architecture makes it easier to create reusable components. Additionally, React's ecosystem offers a variety of tools and libraries for styling, state management, and UI component libraries, further facilitating the development of complex design systems and UIs.


Easy integration with animation libraries

React can be used effectively for implementing animations in web apps. It can be easily integrated with animation libraries, which allows developers to create fluid animations and transitions within React components.


Server-side rendering (SSR)

React supports server-side rendering, which allows you to render React components on the server and send the HTML to the client, improving performance and SEO.

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