React is an open-source front-end javascript library for building user interfaces. The abbreviation 'js' stands for JavaScript. React JS allows you to create complex user interfaces using reusable components. The developer no longer has to rewrite the same lines of code manually and can use previously created and saved components. React js is a front-end technology, which means that it is responsible for the view layer - everything that your future user sees on his screen while using your web application. The nature of the Javascript language on which React JS is based means that the web application created with its help constantly refreshes the user interface data. If necessary, you can change the data without refreshing the web browser. It boosts performance and user experience.

Under the hood of React JS, as mentioned earlier, is JavaScript scripting language. It is a text-based language that makes web applications interactive. Compared to other programming languages such as HTML or CSS, which are responsible for static elements like the structure of a web app, JavaScript is responsible for clickable elements that occupy the user. That's why React is an excellent solution for dynamic web applications. React API (Application programming interface) is relatively small, making its use more intuitive and straightforward than other technologies. To be more precise, to create user interfaces, React operates on two main APIs - React vDOM and React component API. The previously mentioned React components, which are responsible for building the UI quickly and efficiently, like using Lego blocks, use JSX (JavaScript XML). React vDOM stands for quicker refreshing of pages and better stability.

React component is simply a code element (UI) written in JavaScript that can be reused many times while writing an application. The React team can use ready-made components included in React or build their own depending on the needs.

React JS is a UI library based on JavaScript technology. As can be easily deduced, React is responsible for building and rendering the UI (both server-side rendering and client-side rendering). It is used to create beautiful and responsive UIs for web apps. RN, on the other hand, is the entire framework dedicated to building cross-platform native-like mobile apps. React JS uses Virtual DOM for rendering with more technical differences, while its little brother uses Native APIs. Both of these technologies are connected because React JS is at the heart of RN. To sum up, React JS is a javascript library used for web development, while React Native is a whole framework used to develop mobile apps.

Whether you're scrolling through Facebook, Instagram, or looking for an apartment on Airbnb, all of these pages were created using React JS. Likewise, if you do Netflix & chill, you can be sure that the web app you are looking at was made in React. These are just a few of the great companies that trusted it; the list is very long and includes players like Dropbox, Imgur, Reddit, New York Times, etc.

There are many use cases of this user interfaces library. React is an ideal solution when you want to build a web app that will be very dynamic and interactive while also having an excellent and responsive user interface. Still, you can also develop a static app if you want. What's more, its development is relatively fast and economical, making it an ideal choice when building an MVP (Minimum Viable Product). Web applications developed with React can be quite simply transformed into mobile apps using React Native. As a ReactJS web development company, we must state, that use of any technology is strictly connected to the type of project you want to build. Therefore if you would like to learn how our app development services suits your needs, get in touch with us!

It is a frequently asked question that is already wrong in its assumptions. That's because React is a JavaScript library, not a framework. So what is the difference between library and framework? A framework is a set of predefined rules that developers can use to make an app. It contains the control flow and many white spots where programmers can add their code, making it more complex than a library or other software package. A library is a collection of class definitions that needs to be compiled and integrated into the system. The reason for this, it's code reuse - getting the job done without writing your own tedious, redundant code by using someone else's already registered work. With React, however, you can write your components using JSX. These classes may have been built with specific operations in mind, but they are not limited because anything can be used as long as you access them through an API (Application Programming Interface). They will usually focus on only one piece of functionality and store their data within other libraries or frameworks, which means less redundancy when adding new features!

React JS gained its popularity because Facebook responded to developers' needs. It reduced the need to write large amounts of often repetitive code by using components. Moreover, by using JSX (a unique syntax that allows HTML quotes and HTML tag syntax applications for rendering specific subcomponents), the whole process is faster, components can be built from scratch, and rebuilding an HTML application is much less resource-intensive. Transparency, flexibility, and simplicity are the features that make React the future of web development. The technology that Reacts is written on also significantly impacted its popularity because it is JavaScript. It has been on the market for many years; therefore, the developers didn't have much problem quickly learning the new Facebook technology.