What is event pooling in react?

In React, event pooling is a performance optimization technique that reduces the number of event objects that are created.

In JavaScript, when an event such as a click or a key press occurs, an event object is created to represent the event. This event object is then passed to any event listeners that are registered to handle the event.

Normally, a new event object is created for every event that occurs. However, in some cases, creating a new event object for every event can be inefficient, especially if the event is occurring frequently. To improve performance in these cases, React uses event pooling, which means that it reuses the same event object for multiple events.