Why ReactJS ?
ReactJS, commonly known as React, is a JavaScript library developed by Facebook for building robust user interfaces. Here’s why React has become immensely popular among developers:
- Component-Based Architecture: React emphasizes reusable components, making it easy to build modular UI elements that can be reused across the application.
- Declarative Syntax: React’s approach focuses on describing how the UI should look based on its current state, leading to efficient updates and clear code readability.
- Virtual DOM: React uses a virtual DOM, an in-memory representation of the actual DOM, for efficient updates and minimal DOM manipulations, resulting in better performance.
- Unidirectional Data Flow: React follows a one-way data flow, ensuring that data flows down the component hierarchy via props. Any changes trigger re-renders, maintaining a predictable data flow pattern.
- Rich Ecosystem: React boasts a diverse ecosystem with numerous libraries, tools, and community contributions. This wealth of resources empowers developers to extend their applications with ease and add new features seamlessly.
Getting Started with React
ReactJS, often referred to as React, is a popular JavaScript library developed by Facebook for building user interfaces. It emphasizes a component-based architecture, where UIs are built using reusable components. React uses a declarative syntax to describe how UIs should look based on their state, simplifying development and enhancing code readability.
React also utilizes a virtual DOM to optimize rendering performance by minimizing actual DOM manipulations. React’s unidirectional data flow and rich ecosystem of libraries and tools have made it a go-to choice for frontend development, especially in building single-page applications (SPAs).
Table of Content
- Why ReactJS ?
- Setting Up Your Development Environment
- Understanding React Components
- Creating Your First React Component
- JSX (JavaScript XML)
- Working with Props and State
- Handling Events:
- Conditional Rendering
- Lists and Keys
- Styling React Components
- Introduction to React Hooks
- Building a Simple React Application
- Component Lifecycle
- React Router
- Managing State with Context API