Contrary to popular belief, by default, react component doesn’t care whether its props changed or not. It will always re-render when its parent renders. The structure of the app is: App > A > B > C.
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A Visual Guide to React Rendering - It Always Re-renders
Contrary to popular belief, by default, react component doesn’t care whether its props changed or not. It will always re-render when its parent renders. The structure of the app is: App > A > B > C.
Full article