ReactJS is a component-based JavaScript library used to build dynamic and interactive user interfaces. It simplifies the creation of single-page applications (SPAs) with a focus on performance and maintainability. It is developed and maintained by Facebook.
JavaScript was first known as LiveScript, but Netscape changed its name to JavaScript, possibly because of the excitement being generated by Java. JavaScript made its first appearance in Netscape 2.0 in 1995 with the name LiveScript. The general-purpose core of the language has been embedded in Netscape and other web browsers.
The ECMA-262 Specification defined a standard version of the core JavaScript language.
1. Component-Based Architecture
React applications are built using reusable components, making development efficient and modular.
2. Virtual DOM (VDOM)
React uses a Virtual DOM to update only the changed parts of a web page, resulting in faster performance.
3. Declarative UI
Developers describe how the UI should look at any given state, and React handles the updates efficiently.
4. One-Way Data Binding
Data flows in a single direction, making it easier to debug and manage application states.
5. React Hooks
Hooks allow functional components to have state and lifecycle features without using class components.
6. Server-Side Rendering (SSR) with Next.js
React supports SSR through frameworks like Next.js, improving SEO and initial page load performance.
7. React Native for Mobile Apps
React.js can be used to build mobile applications using React Native, allowing cross-platform app development.
