What is react ?
- React is a javascript library used to build the UI(user interfaces) especially single-page applications(SPAs)
- where content updates dynamically without reloading the page.
- React focuses only on the ** view layer** (UI rending) and makes it easy to build reusable,component-based UIs.
- React follows a component-based architecture, meaning the UI is divided into ** small, reusable pieces** called components.
- It uses a Virtual DOM (Document Object Model) for faster rendering and better performance.
- React is declarative, meaning you describe what you want the UI to look like, and React updates the** real DOM** for you.
*Why React? *
- Reusable Components
- Write once, reuse anywhere → saves time and effort.
- Virtual DOM = Faster Performance
- React only updates the parts of the page that change, not the entire page.
- Component-Based Architecture
- Easier to develop, maintain, and scale large applications.
- Strong Community & Ecosystem
- Backed by Facebook and has a huge developer community, with many libraries/tools.
- Cross-Platform Development
- With React Native, you can build mobile apps using the same React concepts.
- SEO Friendly
- React supports server-side rendering, which helps in better search engine optimization.
- Easy to Learn for JavaScript Developers
- If you know JavaScript + ES6, you can quickly pick up React.
Difference between Library and frameworks:
Library:
library is a set of read-made function **that I can call when I **need them, so I control the flow **.
**frameworks:
A framework already has a structure and controls the flow of the application — I just follow its rules.
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