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Summary - Layout components

Write a DashboardLayout with header, sidebar and main content.

Summary - Layout components

In this group you learned the layout pattern, the sidebar and header structure, and Outlet usage. The layout writes the frame once; every page shares it.

The sidebar holds links, the header holds the logo and menu. Outlet marks where child routes render. These three tools together build a consistent app skeleton.

In the last step you will combine the three pieces into one layout.

Practice Full layout

Complete the skeleton below. Write an AppLayout component; return a div containing <header>, <Sidebar />, <Outlet /> and <footer>. Export it.

Starter code

App.jsx
import { Outlet } from "react-router-dom";

// Write the AppLayout component here

Sample solution

App.jsx
import { Outlet } from "react-router-dom";

function AppLayout() {
  return (
    <div>
      <header>Başlık</header>
      <Sidebar />
      <Outlet />
      <footer>Alt bilgi</footer>
    </div>
  );
}

export default AppLayout;

Questions and answers

Review the lesson questions together with their answers. To test yourself, solve the lesson interactively.

1 Which renders the child route?

  • Outlet Correct answer
  • Header
  • Footer
  • Sidebar

Explanation: Outlet renders the child route.

2 Summary match

Term Meaning
Layout Frame
Sidebar Left menu
Outlet Child route
header Top area

All lessons in Intermediate

1 Custom hook basics

  1. What is a custom hook?
  2. useToggle
  3. usePrevious
  4. Summary - Custom hook basics

2 Advanced custom hooks

  1. useLocalStorage
  2. useFetch
  3. useDebounce
  4. Summary - Advanced custom hooks

3 Context deep dive

  1. Context separation
  2. Context + useReducer
  3. Default value and error
  4. Summary - Context deep dive

4 useReducer pattern

  1. The reducer pattern
  2. Action types
  3. Composition
  4. Summary - useReducer pattern

5 Cart management

  1. Project: Cart management
  2. Cart reducer
  3. Cart context
  4. Add product UI

6 useMemo

  1. What is useMemo?
  2. Dependency control
  3. Pitfalls
  4. Summary - useMemo

7 useCallback

  1. What is useCallback?
  2. Sibling re-render
  3. useMemo vs useCallback
  4. Summary - useCallback

8 React.memo

  1. What is React.memo?
  2. Prop comparison
  3. Custom comparator
  4. Summary - React.memo

9 Performance project

  1. Project: Performance
  2. Expensive computation
  3. Stable handler
  4. Memoized list

10 Router basics

  1. What is React Router?
  2. Defining routes
  3. Link and NavLink
  4. Summary - Router basics

11 Advanced router

  1. URL parameters
  2. Nested routes
  3. Programmatic navigation
  4. Summary - Advanced router

12 Multi-page app

  1. Project: Multi-page app
  2. Layout and router
  3. List and detail
  4. Navigation and 404

13 Layout components

  1. The layout pattern
  2. Sidebar and header
  3. Layout with Outlet
  4. Summary - Layout components

14 Error boundary

  1. What is an error boundary?
  2. Class component structure
  3. Fallback UI
  4. Summary - Error boundary

15 Suspense and lazy

  1. What is React.lazy?
  2. Suspense boundary
  3. Multiple boundaries
  4. Summary - Suspense and lazy

16 Portals

  1. What is a portal?
  2. Modal example
  3. Event bubbling
  4. Summary - Portal

17 Advanced useRef

  1. useRef and computation
  2. Measuring
  3. forwardRef
  4. Summary - Advanced useRef

18 RTL tests

  1. React Testing Library
  2. render and screen
  3. Firing events
  4. Summary - RTL tests

19 Dashboard project

  1. Project: Dashboard
  2. Layout and route
  3. Stats widget
  4. Add via modal

20 Intermediate final

  1. Challenge: useFetch hook
  2. Challenge: Theme provider
  3. Challenge: Memoized list
  4. Challenge: Routed cart