Why is the React event handler not called on dispatchEvent or what might cause this issue

Question

Can i know Why the React event handler not called on dispatchEvent, or what might cause this issue?

Answer 1

Reason	Explanation	Solution
React Uses Synthetic Events	React wraps native events in SyntheticEvent, but dispatchEvent() only fires native events, bypassing React’s system.	Use fireEvent() from testing libraries or trigger handlers manually.
Event Bubbles Differently	React attaches event handlers at the root (document), while dispatchEvent() works directly on elements.	Fire events at the right element level.
React Uses Delegated Events	React listens at the root, not directly on elements, so manually dispatched events might not propagate correctly	Use element.click() instead of dispatchEvent().
Not Using setTimeout	React batches state updates; immediate dispatch may not work as expected.	Wrap in setTimeout(() => dispatchEvent(...), 0).