Lesson 1Form handling and validation (controlled vs uncontrolled, libraries: Formik, React Hook Form, VeeValidate)Build strong form handling and validation. Compare controlled and uncontrolled inputs, use tools like Formik, React Hook Form, and VeeValidate, and create validation, error messages, and submission processes for complex forms.
Controlled vs uncontrolled input strategiesFormik and React Hook Form in practiceVeeValidate and Vue form patternsSynchronous and async validation rulesError messages, UX, and accessibilityLesson 2UI component libraries and accessibility practices (Tailwind, Material, Chakra, ARIA roles, keyboard navigation)Learn to use modern UI libraries while keeping accessibility strong. Check out Tailwind, Material UI, and Chakra, then add ARIA roles, focus management, and keyboard navigation to build inclusive interfaces ready for production.
Design systems with Tailwind and utility classesMaterial UI and Chakra component patternsSemantic HTML and ARIA role strategiesFocus management and keyboard navigationColor contrast, theming, and reduced motionLesson 3Choosing a frontend framework and justification (React, Vue, Svelte) and ecosystem tradeoffsEvaluate and explain your choice of frontend framework. Compare React, Vue, and Svelte on architecture, ecosystem, performance, and learning curve so you can pick and defend the best option for each project.
React, Vue, and Svelte core conceptsEcosystem maturity and community supportPerformance and bundle size tradeoffsTypeScript and tooling integrationDecision frameworks for real projectsLesson 4Build, bundling, and optimization: Webpack/Vite/Rollup, code splitting, tree-shaking, asset handlingMaster modern build tools for fast frontends. Compare Webpack, Vite, and Rollup, set up code splitting and tree-shaking, and optimise assets, caching, and source maps for quick, maintainable production bundles.
Comparing Webpack, Vite, and Rollup setupsCode splitting and dynamic importsTree-shaking and dead code eliminationOptimizing images, fonts, and static assetsCaching, hashes, and source map strategiesLesson 5Client-side tests: unit testing components, integration tests, testing library choices and examplesCreate a solid client-side testing plan. Learn unit testing for components, integration tests across routes and APIs, and choose between Jest, Vitest, Cypress, and Testing Library for reliable test suites.
Unit testing UI components in isolationIntegration tests for flows and routingUsing Testing Library for user-centric testsChoosing Jest, Vitest, Cypress, or PlaywrightMocking APIs and handling flaky testsLesson 6Local dev and environment configuration: env vars, .env files, feature flags for frontendSet up reliable frontend environments for local and cloud use. Manage environment variables, .env files, build-time injection, and feature flags to toggle features safely across development, staging, and production.
Managing .env files and build-time variablesSeparating dev, staging, and production configsRuntime configuration and environment safetyImplementing frontend feature flagsSecrets handling and configuration pitfallsLesson 7Project structure and folder conventions for single-page apps (components, pages, services, hooks)Design scalable project structures for single-page apps. Learn folder setups for components, pages, services, and hooks, and organise shared utilities, tests, and styles to keep large codebases easy to navigate.
Organizing components, pages, and layoutsServices, hooks, and data access layersShared utilities, types, and constantsStructuring tests and story filesRefactoring toward modular boundariesLesson 8API integration patterns: REST vs GraphQL clients, error handling, request retries, timeoutsBuild strong API integration on the client side. Compare REST and GraphQL clients, set up Axios or Fetch, handle errors and retries, and design timeouts, cancellation, and normalisation for reliable data fetching.
Configuring REST clients with Axios or FetchUsing GraphQL clients like Apollo or URQLGlobal error handling and user messagingRequest retries, backoff, and timeoutsCancellation, abort controllers, and cachingLesson 9Authentication on the frontend: storing tokens, refresh flows, and secure cookie approachesUnderstand secure frontend authentication. Compare localStorage, sessionStorage, and cookies, design refresh token flows, and use HttpOnly cookies, CSRF protection, and logout strategies to keep users safe.
Token storage: localStorage vs cookiesImplementing refresh token flows safelyHttpOnly cookies and CSRF protectionHandling logout, revocation, and rotationAuth error handling and user feedbackLesson 10State management options and patterns (local component state, Context, Redux/Pinia/MobX, React Query)Compare state management for complex frontends. Explore local state, Context, Redux, Pinia, MobX, and React Query, and learn patterns for caching, normalisation, and avoiding unnecessary re-renders in big apps.
Local component state and lifting patternsContext API for cross-cutting concernsRedux, Pinia, and MobX store designServer state with React Query or SWRPerformance tuning and selector patternsLesson 11Routing and protected routes: client-side routing, route guards, lazy loadingBuild reliable client-side routing with protected routes. Learn route setup, nested routes, lazy loading, and guards that enforce authentication and authorisation while keeping navigation quick and accessible.
Configuring client-side routers and routesNested routes and layout hierarchiesImplementing lazy loading and code splittingAuth-based route guards and redirectsHandling 404 pages and fallback routes
