Python Programming
The most popular programming language for automation, data science, and AI. A perfect complement to React JS for full-stack roles — Python powers the backends that React frontends connect to.
₹5,000 40 Classes
Front-End Development Course
React JS
Course in Howrah & Kolkata
Master React JS — the world's most popular front-end library, built and used by Meta. From JSX and component architecture to Hooks, Redux state management, React Router, GraphQL with Apollo, Server-Side Rendering, and production-grade testing — build the complete, modern front-end developer skill-set across 60 expert-guided classes.
React 18
Redux / Flux
Hooks
GraphQL
SSR / Next.js
Webpack
Jest / Testing
60
Classes
60h
Duration
22
Modules
5
Real Projects
10–15
Batch Size
Course Details
What You Get
Everything you need to become a confident React JS developer — from JSX and component design to Hooks, Redux, GraphQL, Server-Side Rendering, and production testing — all in one structured, project-driven course.
60 Classes · 60 Hours
A comprehensive, expert-paced programme covering every pillar of modern React development — from JSX syntax and component architecture to advanced patterns like code splitting, SSR, Redux state management, GraphQL data fetching, and production-grade unit testing with Jest.
ISO & MSME Certificate
Earn a government-recognized, ISO-certified completion certificate that adds genuine credibility to your resume and proves professionally verified React JS training to employers, product companies, and front-end agencies across India seeking skilled React developers.
5 Real-World Projects
Build five complete, employer-ready React applications — a single-page app with React Router, a Redux-powered state manager, a GraphQL-connected data dashboard, a server-side rendered app, and a fully tested React component library — forming a professional portfolio.
Small Batch Sizes
Only 10–15 students per batch ensures personal attention, live code reviews, and a genuinely productive learning environment where every student understands every concept — from component lifecycle to Redux sagas — with complete clarity and confidence.
Hooks, Redux & GraphQL
Go beyond basic React with the complete modern ecosystem — useState, useEffect, useContext, useReducer, and custom hooks; Redux Flux architecture with actions, reducers, and sagas; and GraphQL with Apollo Client for efficient, flexible API data fetching.
SSR, Testing & Webpack
Master production-grade skills — Server-Side Rendering with renderToString, code splitting and lazy loading with Suspense, complete Webpack configuration, and comprehensive testing with Jest, React Testing Library, and Enzyme for professional-quality deliverables.
Full Curriculum
Course Syllabus
5 comprehensive module groups — React Basics, Components & JSX, State Management, Advanced Topics, and the Full Ecosystem — covering all 22 chapters in depth.
Group 1: React Fundamentals & Environment
Begin your React journey from the ground up. Understand what React is, why it was built, and how its virtual DOM model makes UI development faster and more reliable. Set up a professional React development environment with Node, NPM, and Webpack, and learn JSX — the powerful syntax extension that makes writing React components as intuitive as writing HTML inside JavaScript.
Chapters 1–3JSXVirtual DOMEnvironmentES6
Ch 1
What is React JS?
The history and philosophy of React — born at Facebook (Meta) in 2013 to solve the challenge of building large-scale, data-changing UIs efficiently. Core concepts: the component model, declarative rendering, and unidirectional data flow. React's place in the JavaScript ecosystem — a focused view layer (the V in MVC), not a full framework. Key advantages: virtual DOM performance, reusable component architecture, rich ecosystem, and the massive React Native mobile platform. The scope of React in 2024 — powering Facebook, Instagram, Airbnb, Netflix, and thousands of product companies worldwide. Career paths: front-end developer, full-stack React/Node developer, React Native mobile developer.
Ch 2
Overview of JSX
JSX — JavaScript XML — the syntax extension that lets you write HTML-like markup directly inside JavaScript. How Babel transpiles JSX to
React.createElement() calls. The Virtual DOM — a lightweight in-memory representation of the real DOM, and how React's diffing (reconciliation) algorithm minimizes expensive real DOM updates for blazing-fast UI rendering. Understanding React's component model — function components and class components. Containers vs. presentational components — separating logic from UI. Child components and component composition — building complex UIs from small, reusable pieces. Namespaced components for organized component libraries. JavaScript expressions in JSX — embedding dynamic data with curly braces, conditional rendering, and list rendering with .map(). JSX restrictions — single root element, className vs class, self-closing tags, and camelCase event handlers.
Ch 3
React JS Environment Setup
Setting up a professional React development environment from scratch. Installing Node.js and understanding the Node runtime. NPM — the Node Package Manager — installing packages, understanding
package.json, node_modules, package-lock.json, and the scripts field for build automation. ES6 features essential for React: arrow functions, destructuring, spread/rest operators, template literals, default parameters, import/export modules, and Promises. Webpack overview — module bundling, loaders, plugins, and the development server. Create React App vs. Vite vs. manual Webpack setup — understanding each approach. Best IDEs for React development — VS Code setup with React-specific extensions, ESLint, Prettier, and React Developer Tools browser extension for debugging component trees and state in Chrome/Firefox.
Group 2: Components, Props, State & Lifecycle
The heart of React development. Master the art of building reusable, composable React components — the fundamental unit of every React application. Learn how data flows through components via Props, how components manage their own data with State, and how the component lifecycle lets you hook into React's rendering process to fetch data, subscribe to events, and clean up resources. Build your first complete multi-component React application.
Chapters 4–6PropsStateLifecycleFormsEvents
Ch 4
Real-Time Application with React JS
Building your first complete React application. Creating React components with JSX templates — function components and class components side by side. Nested components — composing complex UIs from small, focused pieces. The React render cycle — when and why React re-renders. Props — the mechanism for passing data from parent to child components. Reading props in function components and class components. Props validation with PropTypes — defining expected data shapes and types (
string, number, array, func, shape) for documentation and runtime warnings. Default props with defaultProps. State — component-local data that triggers re-renders when changed. Initializing state, reading state, and updating state with setState(). The golden rule: never mutate state directly. The flow of data — unidirectional data flow from parent to child, and lifting state up to share between siblings.
Ch 5
React JS Forms & UI
Forms in React — controlled vs. uncontrolled components. Controlled components — React state as the single source of truth for form data, with
onChange handlers keeping state in sync. Uncontrolled components — using refs to access DOM values directly. All form input types: text inputs, textareas, select dropdowns, checkboxes, and radio buttons. Setting default values with defaultValue and value. Handling form submission — preventing default browser behavior and processing form data in JavaScript. React form validation — error states, validation messages, and disabling the submit button. Writing CSS in React — traditional CSS files with className, CSS Modules for scoped styles, inline styles with JavaScript objects, and the Styled Components library for component-scoped CSS-in-JS with theming support.
Ch 6
React Component Lifecycle
The lifecycle of a React class component — birth, growth, and death. Mounting phase —
constructor() for initialization, render() for JSX output, componentDidMount() for post-render side effects like data fetching and subscriptions. Updating phase — triggered by new props or state changes: shouldComponentUpdate() for performance optimization, render(), and componentDidUpdate() for reacting to changes. Unmounting phase — componentWillUnmount() for cleanup: cancelling timers, unsubscribing from observables, aborting fetch requests. Error handling with componentDidCatch() and getDerivedStateFromError(). Event handling in JSX — onClick, onChange, onSubmit, onBlur, onKeyUp, and other synthetic events. Sharing events between components — callback props pattern for child-to-parent communication.
Group 3: React Hooks — The Modern Way
Hooks are the most transformative addition to React since its creation — they let function components use state, side effects, context, and more without writing class components. Master every essential hook and learn to write your own custom hooks. This is the foundation of all modern React development and the skills every front-end job posting demands in 2024 and beyond.
Chapters 7–9useStateuseEffectuseContextuseReducerCustom Hooks
Ch 7
React Hooks — Understanding & useState
The motivation for hooks — the problems with class components: complex this binding, difficulty reusing stateful logic (render props and HOC patterns), and hard-to-understand lifecycle methods. Rules of hooks — only call hooks at the top level, only call hooks from React functions. The
useState hook — declaring state variables in function components. Reading state, updating state, and understanding that state updates are asynchronous. State with primitives: numbers, strings, booleans. State with complex types: arrays (using spread to avoid mutation) and objects. Functional updates with the updater form — setState(prev => prev + 1) for safe increments. Lazy initial state for expensive computations. Multiple state variables vs. one state object — best practices and tradeoffs.
Ch 8
useEffect, useContext & useReducer
The
useEffect hook — running side effects in function components. Understanding the dependency array: no array (runs every render), empty array (runs once on mount), with dependencies (runs when deps change). Returning a cleanup function for subscriptions, timers, and event listeners. Common patterns: data fetching on mount, responding to prop changes, setting up WebSocket connections. The useContext hook — consuming React Context without prop drilling. Creating context, providing context values, and consuming them with useContext()useReducer hook — managing complex state with Redux-like reducer functions. When to use useReducer over useState — multiple related state values, state transitions with business logic, and when next state depends on previous state. Dispatch, actions, and reducer patterns for predictable state management.
Ch 9
Writing Your Own Custom Hooks & Styles
Custom hooks — the ultimate pattern for extracting and reusing stateful logic between components. The naming convention: always start with
use. Building practical custom hooks: useFetch(url) for data fetching with loading and error states, useLocalStorage(key) for persisting state, useDebounce(value, delay) for search inputs, useWindowSize() for responsive rendering, and useEventListener(event, handler). Styling React applications at scale — CSS Modules for zero-specificity-conflict scoping, Styled Components with tagged template literals for component-scoped CSS-in-JS, theming with ThemeProvider, global styles, and keyframe animations. Using CSS animations in React with react-spring and framer-motion for fluid UI transitions and micro-interactions.
Group 4: React Router, Flux & Redux
Build complete single-page applications with React Router's declarative navigation, and master Redux — the industry-standard state management solution for large-scale React apps. Understanding the Flux architecture pattern, implementing Redux with actions, reducers, and the Redux DevTools, and handling asynchronous actions with Redux Sagas are the skills that distinguish senior front-end developers in the job market.
Chapters 10–13React RouterFluxReduxSagasCode Splitting
Ch 10
React Router with Navigation
Single-Page Application (SPA) architecture — how React apps deliver a full web experience without traditional page reloads. React Router — the standard routing library for React SPAs. Installing and configuring React Router v6 —
BrowserRouter, Routes, and Route. Declarative vs. programmatic navigation. Link and NavLink components for accessible navigation with active state styling. URL parameters — extracting dynamic route segments with useParams(). Query string parameters with useSearchParams(). Nested routes and layout routes for shared navigation structures. Protected routes — redirect unauthenticated users. Programmatic navigation with useNavigate(). Handling conditional routing — conditional statement in JSX. IIFE patterns in JSX for complex rendering logic. React-cookie integration for managing cookie-based sessions in SPAs.
Ch 11
Flux Architecture & Redux
The Flux architecture pattern — Facebook's solution to complex, unpredictable state in large applications. Flux components: Dispatcher (the single hub routing all data), Stores (holding application state and logic), Actions (data payloads describing what happened), and Views (React components responding to store changes). How Flux enforces unidirectional data flow. Redux — the most popular Flux implementation. Core Redux concepts: a single store, pure reducer functions, and immutable state updates. Actions and action creators. The Redux store —
createStore(), getState(), dispatch(), and subscribe(). Connecting Redux to React with react-redux — Provider, useSelector(), and useDispatch(). Redux DevTools for time-travel debugging. Redux Toolkit — the modern, opinionated Redux — createSlice(), createAsyncThunk(), and configureStore().
Ch 12
Redux Sagas, Selectors & Code Splitting
Redux Sagas — handling complex asynchronous side effects (API calls, WebSockets, delays) with generator functions. Saga effects:
call(), put(), take(), takeEvery(), takeLatest(), fork(), and all(). Chained exceptions and error handling in sagas. Redux Selectors — computing derived state efficiently with Reselect's createSelector() for memoized, performant state access. Code splitting with React Suspense and React.lazy() — loading components only when needed to reduce initial bundle size. Route-based code splitting for SPAs. Lazy loading images and heavy components. Tree shaking — removing unused code from production bundles. Webpack Bundle Analyzer for visualizing and optimizing bundle composition.
Ch 13
Error Handling & Integration with Other Libraries
Error boundaries — React's mechanism for catching JavaScript errors in component trees and displaying fallback UIs. Implementing error boundaries with
componentDidCatch() and getDerivedStateFromError(). Handling exceptions gracefully — logging to error monitoring services like Sentry. Integrating React with Gulp and Browserify for legacy build pipelines. React with jQuery — coexistence strategies when incrementally migrating legacy jQuery apps to React. AJAX in React — using the Fetch API and Axios for HTTP requests, handling loading states and errors, and aborting requests on component unmount to prevent memory leaks. Debouncing API calls in search inputs. Optimistic UI updates for a snappy user experience.
Group 5: GraphQL, SSR, Webpack & Testing
The most advanced and career-critical group — where React meets the production world. Master GraphQL with Apollo Client for modern API data fetching, implement Server-Side Rendering for SEO and performance, configure Webpack like a professional, and write comprehensive tests with Jest, React Testing Library, and Enzyme. These are the skills that put you in the top tier of React developer job applications.
Chapters 14–22GraphQLApolloSSRWebpackJestTesting Library
Ch 14–15
Server-Side Rendering (SSR) & Isomorphic React
Client-side rendering vs. server-side rendering — the SEO, performance, and first-paint tradeoffs. Isomorphic (universal) React — code that runs on both server and browser. Setting up an Express server to render React components with
ReactDOMServer.renderToString() for full HTML output and renderToStaticMarkup() for static pages. The SSR toolchain — Babel, Webpack, and Node together. Hydration — attaching React event listeners to server-rendered HTML on the client. Introduction to Next.js patterns — file-based routing, getServerSideProps for dynamic SSR, and getStaticProps for static generation. SSR with Redux — serializing and rehydrating store state between server and client. Production SSR deployment considerations.
Ch 16–17
Unit Testing React Components
Why testing matters — catching regressions, documenting behavior, and enabling confident refactoring. The React testing landscape — Jest as the test runner and assertion library, React Testing Library (RTL) for user-centric component tests, and Enzyme for implementation-detail testing. Setting up Jest with React — configuration, coverage reports, and watch mode. Writing unit tests:
describe(), it(), expect(), and Jest matchers. React Testing Library philosophy — test what the user sees, not implementation details. Queries: getByRole(), getByText(), getByLabelText(). User event simulation with userEvent. Testing async components — data fetching, loading states, and error boundaries. Mocking modules, APIs, and timers with Jest. Enzyme — shallow rendering for isolated unit tests and mount for integration tests. Testing React Router — wrapping components with MemoryRouter. Code coverage targets and CI integration.
Ch 18–19
Webpack Primer — Professional Build Configuration
Deep-dive into Webpack — the module bundler powering most React applications. Installing and setting up Webpack from scratch. The Webpack configuration file — entry, output, mode, and devServer. Loaders — transforming non-JavaScript files:
babel-loader for JSX/ES6, css-loader, style-loader, file-loader for images. Plugins — HtmlWebpackPlugin, MiniCssExtractPlugin, and DefinePlugin for environment variables. Development vs. production builds — optimization, minification, and source maps. Hot Module Replacement (HMR) — updating modules in the browser without full reload for a fast development workflow. Code splitting with SplitChunksPlugin. Performance budgets and bundle analysis.
Ch 20–22
Fetch Data with GraphQL & Apollo Client
What is GraphQL — the query language for APIs invented by Facebook. The problems with REST: over-fetching and under-fetching. GraphQL solutions: ask for exactly what you need, nothing more. GraphQL type system, schemas, queries, mutations, and subscriptions. GraphQL data types and modifiers —
String, Int, Boolean, ID, custom types, non-null (!), and list ([]). Building a GraphQL API server with Express, graphql-js, and express-graphql. The GraphiQL browser IDE for exploring and testing APIs. Apollo Client — the leading GraphQL client for React. Setting up Apollo Provider. Fetching data with useQuery() — loading, error, and data states. Mutations with useMutation(). Apollo Cache — intelligent local data management and cache updates after mutations. Combining React + Apollo + GraphQL in a complete full-stack data-fetching application.
What You'll Learn
Learning Outcomes
Graduate with the React JS skills needed for front-end developer, full-stack, and UI engineer roles — with 5 real projects proving your development capability to any employer.
Build Production React Apps
Design and develop complete, production-ready React applications using modern component architecture, JSX, Props, State, and the full React ecosystem — the same way professional developers build apps at leading product companies worldwide.
Master Modern React Hooks
Confidently use all essential React hooks — useState, useEffect, useContext, useReducer — and write powerful custom hooks that encapsulate and share complex stateful logic across components the way senior React developers structure their codebases.
Manage State with Redux
Implement Redux state management — actions, reducers, selectors, and sagas — following the Flux architecture pattern to build predictable, debuggable, and maintainable state in large-scale React applications that teams of developers can work on confidently.
Build SPAs with React Router
Create full Single-Page Applications with declarative routing using React Router — dynamic routes, nested layouts, URL parameters, protected routes, and programmatic navigation — delivering seamless, app-like navigation experiences without page reloads.
Fetch Data with GraphQL
Integrate React applications with GraphQL APIs using Apollo Client — write type-safe queries and mutations, manage the Apollo cache, handle loading and error states, and build data-efficient applications that fetch exactly the data they need — no more, no less.
Write Tests & Deploy with SSR
Write comprehensive unit and integration tests with Jest and React Testing Library, implement Server-Side Rendering for SEO-critical applications, configure Webpack for production-optimized builds, and deliver professional, maintainable React code that employers trust.
Who Should Join?
This Course Is For You
Whether you know basic JavaScript or are already a developer looking to specialize in React — this course builds the complete front-end engineering skill-set that product companies, agencies, and startups hire for.
🎓
Students & Freshers
BCA, B.Tech, B.Sc, and MCA students who want to add React JS to their resume — the most in-demand front-end skill for jobs in software product companies, startups, and technology agencies across India and globally.
💻
Web Developers
HTML, CSS, and JavaScript developers who want to level up to component-based front-end development. React is the natural next step after JavaScript, and this course takes you from vanilla JS to production React with Redux and GraphQL.
⚙️
Backend Developers
PHP, Python, Java, or Node.js developers who want to add front-end React skills and become full-stack engineers — commanding higher salaries, greater responsibility, and the ability to build complete web applications independently.
🚀
Career Changers
Non-developers who've completed our JavaScript or Python foundation course and are ready to specialize in front-end development — React is one of the fastest pathways to a well-paying front-end engineering role in the technology sector.
FAQ
Frequently Asked Questions
What is the fee for the React JS course at PBA Institute?
The batch class fee is ₹5,500 for the complete 60-class React JS course (60 hours). One-to-One personalized sessions are available at a higher rate with dedicated instructor attention and fully flexible scheduling. Both options include study materials, software installation support, and an ISO-certified completion certificate.
Do I need to know JavaScript before joining the React JS course?
Basic JavaScript knowledge — variables, functions, arrays, and objects — is recommended. The course includes a focused ES6 refresher in Chapter 3 covering arrow functions, destructuring, modules, and Promises. Complete beginners are encouraged to first complete our JavaScript or Python Programming course as a foundation before joining React JS.
What real projects will I build in the React JS course?
You will build five complete, employer-ready applications: (1) a multi-page SPA with React Router and dynamic routing, (2) a Redux-powered task manager with full CRUD operations, (3) a GraphQL + Apollo data dashboard connecting to a real API, (4) a server-side rendered React app with Express, and (5) a fully tested React component library with Jest and React Testing Library — forming a professional development portfolio.
Is React JS still the best front-end framework to learn in 2025?
Yes — React consistently ranks as the most used front-end framework in Stack Overflow's annual developer survey, with over 40% of front-end developers using it. It powers companies like Facebook, Instagram, Airbnb, Netflix, and Uber. In India, React JS developer salaries range from ₹4–25+ LPA. Mastering React in 2025 is one of the highest-ROI technology investments for your career.
Can I attend the React JS course online from outside Howrah?
Yes. PBA Institute offers fully live online React JS classes with the same instructor — screen sharing, live coding, component demos, and real-time doubt resolution in every class. Students from across West Bengal and India attend online and receive the same ISO-certified certificate upon completion. Contact us for a free demo class to experience the quality before enrolling.
Does this course cover Next.js or just React?
The course covers React JS comprehensively — including Server-Side Rendering concepts and patterns that Next.js is built upon, such as renderToString, getServerSideProps patterns, and the full SSR toolchain. After completing this course, you will have the React foundation required to quickly learn and use Next.js independently. A dedicated Next.js course is available as an advanced follow-up at PBA Institute.
Start Your React Journey Today
Ready to Master React JS?
Join PBA Institute's React JS course in Howrah. Learn from JSX basics to Redux, GraphQL, SSR, and professional testing — build 5 real projects, earn an ISO certificate, and become the front-end developer every company is hiring for.
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