Key features and concepts of React include:
Component-Based Architecture: Similar to Vue.js, React promotes a component-based architecture. UIs are broken down into reusable and encapsulated components, which can have their own state and behavior.
Virtual DOM: React utilizes a virtual representation of the actual DOM. When there are changes in the data, React creates a virtual DOM diff and efficiently updates only the necessary parts of the actual DOM, minimizing performance bottlenecks caused by frequent direct DOM manipulation.
Unidirectional Data Flow: React follows a unidirectional data flow, where data flows in a single direction, from parent to child components. This makes it easier to track and manage the flow of data, leading to more predictable behavior in your application.
Reconciliation: React’s reconciliation algorithm is responsible for efficiently updating the DOM when changes occur. This process ensures that only the necessary updates are made, improving performance.
Hooks: Introduced in React 16.8, hooks are functions that allow you to use state and other React features without writing class components. They provide a more functional and concise way to manage component state and lifecycle events.
Context: React Context provides a way to share state across multiple components without the need to pass props explicitly through each level of the component tree.
Lifecycle Methods: React components have a series of lifecycle methods that allow you to perform actions at different points in a component’s lifecycle, such as mounting, updating, and unmounting.
Redux and State Management: While React itself manages component state, more complex applications often require centralized state management. Redux is a popular library used with React to manage application-wide state in a predictable and maintainable way.
Community and Ecosystem: React has a large and active community, contributing to a vast ecosystem of libraries, tools, and resources. This includes React Router for client-side routing, various UI component libraries (like Material-UI and Ant Design), and more.
React’s focus on building UI components in a modular and reusable manner, along with its performance optimizations, has made it a go-to choice for developers building modern and interactive web applications.