ReactJS is a very popular frontend web development open-source library for developers today. Once you are comfortable with it, the experience of writing a web application becomes easy and enjoyable.
ReactJS divides the UI into multiple independent components and then composes them to build the complex user Interfaces. These components are the heart of all ReactJS applications. Which makes code easier to debug, and each component has its own property and function. These components also make the development and maintenance of the web application faster because multiple developers can work simultaneously on different components in the same web application.
- State: Data which we need to display when component rendered
- Rendor Methods: Describe how the UI looks and feels to the user
In the model view controller (MVC) design pattern, ReactJS is the “View” responsible for how the app looks and feels. So ReactJS gives you a way to structure the view layer of your application.
The apps you build with ReactJS are very interactive because of virtual DOM ( Document Object Model ). The virtual DOM is only a virtual representation of the DOM, which is the exact copy of the real DOM. ReactJS keeps this lightweight representation of the DOM in memory. Every time the state of our object changes, the virtual DOM changes only that object in the real DOM instead of updating all the objects. This allows us to update parts of the page that need to be updated without reloading it.
To date, more than 2 million websites are built using ReactJS, and there’s no sign of stopping. According to Google trends, ReactJS had a better growth scale than other frameworks like Angular and Vue. Netflix, Facebook, Instagram, and Reddit are recognizable companies using ReactJS in their applications.
Not only it’s the preferred tool by top companies, but ReactJS also has a massive active community.
- GitHub Repository – has 181K star / 1524 contributors/ Among the top 5 trending repositories
- NPM Package – has more than 10 million downloads.
- StackOverflow – Over 250k questions asked about React
ReactJS is easy to learn compared to other frameworks like Angular. Also, there is well-organized documentation available online that will help you learn everything related to ReactJS within a short period. If you have basic knowledge and familiarity with JS and HTML, you are good to start coding with ReactJS.