event handler
Run interaction-triggered work in the code that handles that event.
Use this when A form submission runs again when an unrelated theme or state value changes.
without the term
“The form submits again whenever I toggle dark mode. I think there's a useEffect watching a 'submitted' flag. Can you make it submit only when the user actually clicks submit?”
with the term · How do you ask a model for event handler?
Move this submit-triggered work into its event handler. Verify one submission per action and no resubmission after unrelated state changes.
What is event handler?
An event handler responds to a specific interaction. In React, work caused by a click or submit often belongs there rather than in an effect that watches a flag.
Why does event handler matter when vibe coding?
Modeling an action as a boolean plus an effect can repeat a side effect unexpectedly.
How do you do event handler?
Identify the initiating event and move its action there. Keep effects for necessary synchronization.
What goes wrong with event handler?
Removing required ongoing synchronization together with the interaction-specific effect.