React Basics & Backend Integration (Spring Boot)

React Fundamentals for Spring Boot

Learning Outcome

Learn hooks basics

Understand JSX and rendering concepts

Identify key features of React

Learn SPA concept

Understand React fundamentals

Understand API integration flow with backend

What is React?

A JavaScript library for building user interfaces

Developed and maintained by Facebook

Used for building Single Page Applications

Core Idea

UI is built using reusable component

History of React

Introduced by Facebook in 2013

Created to solve UI performance issues

Widely adopted in modern frontend development

Introduced Virtual DOM concept

Features of React

Component-based architecture
Build UI using independent, reusable components

Virtual DOM
Improves performance by updating only changed elements

Component-based architecture
Build UI using independent, reusable components

One-way data binding
Data flows in a single direction (easy debugging)

Reusability
Components can be reused across the application

Pros and Cons of React

Props

High Perpomance

Reusable components

Large community support

Easy integration with backend

Cons

Learning curve for beginners

Frequent updates

Requires additional libraries for full setup

What is JSX?

import React from "react";

function App() {
  return (
    <div style={{ textAlign: "center", marginTop: "50px" }}>
      <h1>Hello React </h1>
      <p>Welcome to your first React App</p>
    </div>
  );
}

export default App;

Hello React !

Welcome to Jsx

Improves Readability

Easier UI creation

Combines Logic and UI

Why react ?

Core Concepts (.....Slide N-3)

Summary

Build strong branding

Use different marketing channels

Target the right audience

Create and communicate value

Understand customer needs

Quiz

Which platform is mainly used for professional networking and B2B marketing ?

A. Facebook

B. Instagram

C. LinkedIn

D. Snapchat

Quiz-Answer

Which platform is mainly used for professional networking and B2B marketing ?

A. Facebook

B. Instagram

C. LinkedIn

D. Snapchat