Advanced React Hacks 1/10 - Conditional Hooks
According to react.dev "Rules of Hooks" you cannot call hooks inside a condition
https://react.dev/warnings/invalid-hook-call-warning#breaking-rules-of-hooks
But what if you want it?
Use components!
export const ParentComponent = ({ component }: ParentComponentProps) => {/* derive condition here */
// const condition = false;
const condition = true;
/* derive property here */
// cont property = 0;
// ...
return (<>
{ condition && <HookComponent hookProperty={property} />}
</>);
}
export const HookComponent = ({ hookProperty }: ChildComponentProps) => {useCustomHook(hookProperty); // could be anything!
return <></>; // yes, components can render nothing
}
With great power comes great responsibility!
Hope this helps! More next time...
This article offers a practical look at React performance by focusing on unnecessary rerenders and how developers can identify them. The discussion of Highlight Updates is especially useful because visual feedback makes rendering behavior easier to understand, while the historical note about React Developer Tools adds an interesting perspective on how debugging features have evolved.
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