What is React.js and what makes it effective for UI development?

This question investigates React's architecture and benefits for building dynamic, component-driven UIs.

React.js, developed by Facebook, is a declarative, component-based JavaScript library for building modern UIs ([turn0search2]turn0search20]). Why it's effective: • Uses JSX, which lets developers write HTML-like syntax inside JavaScript. • Maintains a virtual DOM that updates only changed parts of the UI for fast rendering. • Promotes modular, reusable component design for maintainable codebases ([turn0search56]turn0search32]). Ideal for SPA architecture and reactive interfaces with smooth user experiences. Category: Frontend Development Tags: reactjs, frontend, user-interface, components, virtual-dom