I haven't used React in the last three years but these steps were quite clear and helped me understand how it has evolved. Thanks :)
I see only one change of modern React compared to React 3 years ago: hooks instead of class components with local state and lifecycle methods. I guess in the next three years React will not change dramatically as well.
Also - classes still work great, and there are no plans to deprecate them! I only choose hooks for this guide because I find them easier to explain than classes. I hope to do another guide in the future though (a part 2 I guess) that explains classes - because there are SO MANY classes in the wild that React developers will definitely encounter them.
Btw, I still prefer to use class components instead of hooks, because I don't want to mix two approaches in one codebase (even if it's the acceptable strategy as described in the official docs).
I see increasingly hooks described as an alternative to classes. But hooks are really just something you can use in functional components. Functional components are the alternative to classes and don't require hooks
Correct, yes. Hooks are what enables function components to replace classes though- otherwise you can have local state. You could do everything in redux though say, and you wouldn’t need ‘useState’
Hooks help functions replace classes only when those class components used state or life cycle. Otherwise it could have used a functional component all along and that's always been the alternative to classes. I'm not sure what my point was anymore but it's fun to discuss
:) Yes - you're correct; the main use case for hooks is state or lifecycle (useEffect). You can also use useRef for reference though, useContext for context, and a few other things - but useState is probably most of the usage.
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