Imperative Approach

Describe the steps the computer must take to achieve a goal. This approach focuses on how to perform tasks and how to achieve the desired state.

Declarative Approach

Describe what you want to achieve without explicitly listing the steps to get there. This approach focuses on what the program should accomplish.

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What is React JS?

A JavaScript library for building a fast and interactive user interface.

It is very popular technology that is used for building vast web application, developed by Facebook (now Meta).

Why React?

  1. Component-Based Architecture: Promotes reusability and modularity.
  2. Virtual DOM: Enhances performance by efficient updates.
  3. Declarative Syntax: Simplifies UI development and makes the code more readable.
  4. JSX Syntax: Combines HTML-like structure with JavaScript logic.
  5. State Management: Built-in hooks and compatibility with state management libraries.
  6. Strong Community and Ecosystem: Extensive resources and third-party libraries.
  7. Cross-Platform Development: Enables web and mobile app development (React Native).
  8. Developer Tools: Powerful debugging tools like React Dev Tools.
  9. SEO-Friendly: Supports server-side rendering (e.g., Next.js).