Sunday, January 21, 2024

Advanced React Hacks 1/10 - Conditional Hooks

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...

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