Developing React Applications with Functional Components
summary
Advocates moving from class-based components to functional components and shows a small React app that renders an App → Greet hierarchy, passes props, and wires an input using useState/useEffect hooks to update state on onChange. Demonstrates async fetch behavior with a setTimeout and explains the dependency array to run once to avoid infinite re-fetch loops. Explains how virtual DOM diffing minimizes real DOM updates, warns that hook order is critical, and the demos log and re-render as expected.
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chapters (11)
- 0:00Understanding SPAs
- 2:07The case for React
- 6:44Declarative programming
- 9:32React components
- 13:28Functional components
- 16:16Virtual DOM explained
- 18:33Building components
- 27:55Asynchronous challenges
- 35:58Using hooks
- 46:11Managing state
- 55:25Conclusion
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