React Express
1
Environment
1.1
Quick Start
1.2
Setup and Tools
2
JSX
3
React
3.1
Elements
3.2
Rendering
3.3
Components
3.4
Styling
3.5
Events
3.6
User Input
3.7
Conditional Rendering
3.8
Lists and Keys
3.9
Performance Model
4
Hooks
4.1
useState
4.2
useReducer
4.3
useEffect
4.4
useMemo
4.5
useCallback
4.6
useRef
4.7
useContext
5
Patterns
5.1
Returning Multiple Elements
5.2
Arbitrary Children
5.3
Render Props
5.4
Controlled Components
5.5
React.Children
5.6
Data Model Props
6
Projects
6.1
Todo List
6.2
Dashboard
Search pages
useMemo
The
useMemo
hook lets us
memoize
values as a performance optimization.
Previous:
useEffect
Next:
useCallback