React 19 & Next.js 16 Fullstack Mastery Bundle
What's Included

React 19 Mastery: Advanced Patterns, Performance, Routing, Advanced State, Forms & Testing

- Experience level required: All levels
- Access 49 lectures & 4 hours of content 24/7
- Length of time users can access this course: Lifetime
Course Curriculum
49 Lessons (4h)
Your First Program
Advanced React Patterns
Controlled vs Uncontrolled Components6:49Render Props Pattern5:31Compound Components Pattern10:04Higher Order Components (HOCs)5:27Function as Children PatternProp Getters & Prop Collections13:33State Reducer Pattern9:40Controlled Props Pattern7:10Optimising React Performance with Memoization, Virtualisation, Suspense, Profiling ...
Introduction to Performance in ReactReact.memo — Memoizing Components5:43Another example using React.memo4:14useCallback — Memoizing Functions6:41useMemo — Memoizing Expensive Calculations5:32Profiling React Apps with React DevTools Profiler7:48React VirtualizationLazy Loading Components (React.lazy + Suspense)7:21Routing & Navigation in React (with React Router 7 / latest React 19 syntax
Introduction to Routing in ReactNested Routes & Layouts (using )7:17URL Parameters & useParams15:20Search Params & Query Strings9:15Programmatic Navigation with useNavigate7:31Protected Routes (Auth Example)10:00Code Splitting & Lazy Loading RoutesForms - Validation & Advanced
Review of Controlled vs. Uncontrolled Inputs1:58Handling Forms in React (Basic)7:23Advanced Form Handling with react-hook-form - 11:29StartSchema Validation with YupCustom Input Components10:17Data Fetching & State Management (React Query / TanStack / Zustand, Redux Toolkit)
Review of Data Fetching Basics (fetch + useEffect)React Query (TanStack Query) - Using useQuery for API calls12:00Query Caching & RefetchingGlobal State with ZustandRedux Toolkit17:12Error Boundary (Synchronous error handling)11:15Error Boundary + Suspense (Asynchronous Error Handling)Modern Error Handling with react-error-boundary10:31React 19 Testing
Introduction to React Testing - Basic rendering15:06Querying elementsProp-based behaviourTesting conditional renderingTesting Form field initial valuesSnapshot TestingUser Events - Testing Input Typing with userEvent.typeUser Events - Testing Button Clicks with userEvent.clickUser Events - Conditional Rendering with userEventUsing fireEvent11:20Testing Toggle Interactions (Expand/Collapse)5:03Testing Asynchronous Data FetchingTesting Error States in Asynchronous React Components
React 19 Mastery: Advanced Patterns, Performance, Routing, Advanced State, Forms & Testing
Development Island (UK)
Issam Baou is the founder and director of Development Island, based in Bedford, United Kingdom, and specializes in providing top-quality technology courses online. He has two master’s degrees in engineering and management from Cranfield University (UK) and Ecole Centrale, Paris. He has worked for many world-class companies in the past, including Amadeus, Ford, and Airbus, in different roles, including web development, consulting, simulation, and teaching. He has a solid and successful track record of teaching mathematics and web development.
Description
Build Smarter, Faster, and More Scalable Apps the Modern Way
Take your React skills to the next level with this deep-dive, hands-on course designed for developers ready to master React 19's most powerful modern techniques. Explore advanced component patterns, optimize performance with memorization and virtualization, build robust routing flows with React Router 7, and manage complex state using tools like React Query, Zustand, and Redux Toolkit. You'll also learn advanced concepts from handling, schema validation, cutting-edge error handling with Suspense, and industry-standard testing practices that prepare you for real-world production apps. With practical lessons, modern examples, and expert-led guidance, this course equips you with everything you need to build a professional. scalable, and high-performance React 19 applications.
What you'll learn
- Access 49 lectures & 4 hours of content 24/7
- Learn advanced React component patterns, including render props, compound components, higher-order components, and controlled props
- Discover how to optimize React performance using memoization, virtualization, lazy loading, and the React Profiler
- Understand modern routing with React Router 7, including nested routes, layouts, URL parameters, search params, programmatic navigation, and protected routes
- Master form handling from basic inputs to advanced React Hook Form workflows, schema validation with Yup & custom form components
- Explore modern state and data management using React Query, Zustand, and Redux Toolkit for scalable application architecture
- Apply powerful error-handling techniques such as error boundaries, Suspense-based error handling, and React-Error-Boundary
- Practice real-world testing skills, including rendering tests, user events, conditional UI, asynchronous data fetching tests, and error-state testing
Real projects you'll build
- Custom modal component using the Compound Pattern
- Dropdown menu using Render Props
- Scalable form system with validation using React Hook Form & Zod
- Zustand-powered theme & preference manager
- High-performance list with virtualization & memoized rendering
- Fully tested component suite with snapshot, async & user-event tests
What makes this course different
This is not another theory-based tutorial. This course is built for those who already know React… but want to master it.
You'll dive into advanced design patterns, performance optimizations, application architecture, and next-gen state management — the concepts real teams use when building large-scale apps. You’ll build real, practical components and application features using patterns and strategies you'll actually use in professional development.
Who this course is for
- React developers who know the basics but struggle with scalability
- Self-learners who want to fill the real-world knowledge gap
- Developers preparing for professional React interviews
- Front-end engineers ready to build production-ready apps
Specs
Important Details
- Length of time users can access this course: lifetime
- Access options: desktop & mobile
- Redemption deadline: redeem your code within 30 days of purchase
- Experience level required: all levels
- Updates included
- Closed captioning available
- NOT downloadable for offline viewing
- Have questions on how digital purchases work? Learn more here
- Learn more about our Lifetime deals here!
Requirements
- Solid understanding of React fundamentals (components, hooks, props, state)
- Strong grasp of modern JavaScript (ES6+), including async/await and modular code
- Familiarity with basic front-end tools and workflows (HTML, CSS, bundlers, package managers)

Master Next.js 16: From Zero to Pro

React 19 Mastery: From Zero to Pro
Terms
- Unredeemed licenses can be returned for store credit within 30 days of purchase. Once your license is redeemed, all sales are final.

