React.js Development
Build React the way it's written in 2026 — server-first, typed, tested, and fast without hand-tuning every render. Most React tutorials still teach the 2020 model: client-only apps, effect-based fetching, manual memoization. This course teaches the one employers screen for now. Built for fresh IT graduates and working developers alike.
React tutorials date faster than almost any technology, and most
of what ranks on search today teaches patterns the ecosystem has
moved past. Two things make this course current.
First, performance in the React Compiler era:
the compiler performs automatic memoization across the component
tree at build time, so useMemo,
useCallback and React.memo are rarely
needed by hand — and it often optimises more accurately than a
developer can, because it sees the whole data flow. Nearly every
course still teaches manual memoization as the
performance module; we teach what the compiler does for you,
what it can't do, how to write code it can optimise, and when
manual intervention is still warranted. Judgment, not
"memoization is dead."
Second, server-first React is the baseline, not an
advanced topic. Server Components, the
"use client" boundary, Server Actions, streaming
and Suspense are core employability material — and reasoning
about what runs on the server versus what must be a client
component is now a standard interview topic. Production React
lives in meta-frameworks — principally Next.js with the App
Router, with Vite as the standard choice for pure SPAs — and
this course teaches the boundary explicitly. Related:
useEffect is a last resort, not the default
tool — we teach the modern alternatives and how to
recognise the anti-patterns that survive in old tutorials.
It is designed for two audiences at once. If you are a fresh IT graduate, React remains the most commonly required frontend skill, and you graduate with deployed portfolio projects. If you are a working developer — including the large group trained on 2020-era React: class components, effect-based fetching, manual memoization — this course is the modernisation path. The program runs 10 weeks (~75 hours), live and build-along, closing with a production application you deploy, monitor and defend.
Why Learn React When AI Writes Components?
Fair question — here's the honest answer. AI generates React quickly and generates it wrong in ways you have to be able to see. The value has shifted from typing components to architecture, review, debugging, performance and accessibility — judgment that AI can't supply and employers now screen for hard. This course treats AI tooling as what it is: an accelerator you review. You'll use it, you'll learn the failure patterns it repeats, and one project is exactly that — finding and fixing the bugs in AI-generated React that pass a casual glance.
Course at a Glance
- Duration: 10 weeks | ~75 hours | live + hands-on
- Format: Live online · build-along · deployed portfolio projects
- Prerequisite: Solid JavaScript fundamentals and basic HTML/CSS. TypeScript taught from first principles. No prior React experience required.
- Curriculum: 10 modules, from TypeScript foundations to production and capstone
- Portfolio: 7 deployed, production-style projects plus a defended capstone
- Curriculum reviewed: July 2026 — the React ecosystem moves fast; this syllabus tracks the current model
Course Highlights
- Every module leads with what you build and ship, not what you "learn about"
- Compiler-era performance: automatic memoization, and the judgment for when to intervene
- Server-first from the start: Server Components, Server Actions, streaming, the client boundary
-
useEffectas a last resort — modern data fetching with TanStack Query and Suspense - TypeScript throughout — typed React is the default, not an upgrade
- Accessibility as a build requirement, not a checklist at the end
- Testing depth: Vitest, React Testing Library, Playwright, CI gates
- AI tooling used honestly — as an accelerator you review, never a substitute for understanding
Hands-on Projects & Portfolio
Accessible primitives, documented for other developers to use.
Server Components, streaming and Server Actions.
TanStack Query: caching, optimistic updates and offline behaviour.
Validation, server-side handling and proper pending states.
Profile a deliberately slow app and fix it, with before/after evidence.
Unit, integration and end-to-end coverage running in CI.
Find and fix the bugs in AI-generated React that pass a casual glance.
Production application, deployed, monitored and defended.
Tools & Stack
React 19 TypeScript Next.js Vite React Compiler TanStack Query React Hook Form Zod Tailwind CSS Radix / shadcn-style primitives Vitest React Testing Library Playwright ESLint Storybook Node.js Git GitHub Actions Vercel Docker
Career Outcomes
React remains the dominant frontend library and the most commonly required frontend skill in job descriptions — but the bar has moved. Client-only React is now the baseline expectation; what differentiates candidates is server-first architecture, TypeScript, testing depth, performance and accessibility. As organisations consolidate into platform and design-system teams, developers who can build reusable, accessible components for other teams to consume are disproportionately valuable. This course targets:
- Frontend Developer
- React Developer
- Full-Stack Developer (React + Node)
- UI Engineer
- Frontend Engineer in a platform or design-system team
- Product Engineer
- Mobile developer via React Native as an onward path
Who This Course Is For
- Final-year students and fresh IT graduates targeting frontend or full-stack roles
- JavaScript developers moving into React properly rather than by copy-paste
- Backend and full-stack engineers who need frontend competence they can defend
- React developers trained on 2020-era patterns — class components, effect-based fetching, manual memoization — who need to modernise
- Angular and Vue developers switching ecosystems
- Developers using AI tooling who want to review and fix what it produces
Material Includes
- Class recordings
- Project starter repos & component templates
- Code-review checklists & testing rubrics
- Certificate
Prerequisites
- Solid JavaScript fundamentals; basic HTML/CSS
- TypeScript taught from first principles
- No prior React experience required
Estimated Time: 7 Hours
You ship:- A typed utility and component toolkit — props, events, generics and discriminated unions for UI state — that every later project builds on
- The ES features React leans on; modules; async/await; immutability patterns
- TypeScript properly: typing props, state, events; generics in components; discriminated unions for UI state
- Why typed React is now the default rather than an upgrade
Estimated Time: 7 Hours
You ship:- A working interactive app with composed components, controlled forms and list rendering — plus a written mental model of when and why React re-renders
- Components and JSX; props and composition; rendering and reconciliation
- Lists and keys; conditional rendering; forms and controlled inputs
- A mental model of when and why React re-renders
Estimated Time: 8 Hours
You ship:- A refactor that removes needless effects from a tutorial-style codebase — derived state, event responses and fetching moved to where they belong — plus a custom-hook library
- useState, useReducer, useContext, useRef; custom hooks
- useEffect as a last resort: what belongs in an effect and what doesn't
- The anti-patterns that survive in old tutorials — and how to recognise them
Estimated Time: 7 Hours
You ship:- A data-heavy interface with TanStack Query — caching, invalidation, optimistic updates, retries and offline behaviour — wrapped in proper loading and error boundaries
- Why server state isn't UI state; TanStack Query for caching, invalidation, optimistic updates and retries
- Suspense for data; loading and error boundaries
- The use() pattern for reading promises
Estimated Time: 9 Hours
You ship:- A server-first dashboard: Server Components with a deliberate client boundary, Server Actions handling forms without hand-rolled API routes, streaming with pending UI
- Server Components and the "use client" boundary — what runs where, and why
- Server Actions and form handling; useActionState and pending UI
- Streaming and partial rendering; the security and bundle-size reasons this model won
Estimated Time: 7 Hours
You ship:- A feature-organised application with nested layouts, route-level data loading and a structure that survives growth — plus the same app scoped as a Vite SPA, with a written justification for each path
- The App Router model; layouts and nested routes; route-level data loading
- Project structure that survives growth; feature-based organisation; separating UI primitives from feature components
- The SPA path with Vite and a client router where a meta-framework isn't warranted
Estimated Time: 8 Hours
You ship:- A typed, accessible component library — semantic, keyboard-navigable, focus-managed, themed with design tokens — documented for other developers to consume
- Utility-first CSS with Tailwind; component libraries and headless primitives; design tokens; theming
- Responsive and container-query layouts
- Accessibility as a build requirement: semantics, focus management, keyboard navigation, ARIA where genuinely needed
Estimated Time: 8 Hours
You ship:- A performance rescue: profile a deliberately slow app with React DevTools and fix it with evidence — code splitting, virtualisation, asset strategy — documented before/after against Core Web Vitals
- What the React Compiler optimises automatically and what it can't; writing compiler-friendly code
- Code splitting and lazy loading; list virtualisation; image and asset strategy; bundle analysis
- Core Web Vitals; React DevTools profiling; diagnosing a slow app with evidence rather than superstition
Estimated Time: 7 Hours
You ship:- A fully tested feature — unit, integration and end-to-end coverage with Vitest, React Testing Library and Playwright — running as CI gates alongside lint and type checks
- Vitest and React Testing Library; testing behaviour rather than implementation; mocking network calls
- Integration tests; end-to-end testing with Playwright; accessibility testing
- ESLint and type-checking as CI gates; a realistic testing pyramid on a real project
Estimated Time: 7 Hours
You ship:- Your capstone: one production-grade application — designed, built, tested, deployed and monitored — with the architecture defended in review, plus the AI code-review exercise
- Environment configuration and secrets; authentication patterns; error tracking and monitoring; CI/CD; deployment targets and their trade-offs
- Code review practice; working alongside AI tooling without shipping its mistakes
- Capstone design, build, deploy and defense
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- Email: Send your inquiries to hello@progmatrix.com, and one of our representatives will get back to you as soon as possible.
- Website: You can also use the contact form on our website to send us a message directly.