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What is React.memo? No, it's not the useMemo React hook. It is a different React optimization available for your React app components. The React memo function is a higher order function that applies a shallow comparison to component props.
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React JS for Beginners full course - 9 hours: https://youtu.be/RVFAyFWO4go
Here is a React useMemo tutorial: https://youtu.be/oR8gUi1LfWY
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Starter & Completed Source Code: https://github.com/gitdagray/react_memo
What is React.memo - It's not useMemo
(00:00) Intro
(00:33) Welcome
(00:46) Starter Code and Dependencies
(02:25) Extract the TodoItem component
(06:45) Profiling the app with React Dev Tools
(07:45) React.memo - What it is and how to apply it
(09:26) Check improvements with Profiler
(10:28) Shallow comparisons and the Custom Comparison Function
(12:53) 3rd Profile for the win!
(14:04) When to use React.memo
(14:53) Make React.memo just memo
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Tutorial References:
React.memo docs: https://reactjs.org/docs/react-api.html#reactmemo
ES7 React JS Snippets Extension for VS Code:
https://marketplace.visualstudio.com/items?itemName=dsznajder.es7-react-js-snippets
React Dev Tools Extension for Chrome:
https://chrome.google.com/webstore/detail/react-developer-tools/fmkadmapgofadopljbjfkapdkoienihi
General React References:
ReactJS Official site: https://reactjs.org/
React Wikipedia: https://en.wikipedia.org/wiki/React_(JavaScript_library)
React Jobs: https://www.ziprecruiter.com/candidate/search?search=react&location=
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