Updating Arrays in State

Author: tombohub

README.md

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+### Updating Arrays in State
+
+- You can put arrays into state, but you can’t change them.
+- Instead of mutating an array, create a _new_ version of it, and update the state to it.
+- You can use the `[...arr, newItem]` array spread syntax to create arrays with new items.
+- You can use `filter()` and `map()` to create new arrays with filtered or transformed items.
+- You can use Immer to keep your code concise.
+
+*link: https://react.dev/learn/updating-arrays-in-state*
+