The nativeEvent property exposes the underlying browser-native event from a React synthetic event. Use it when browser-specific information is needed beyond the standard React event API. section 8.2.3
Accessing browser-specific event data
When a particular browser provides extra information useful to an application, read that information through the event's nativeEvent property. Treat nativeEvent as a nonstandard, React-only extension rather than a standard event property. section 8.2.3
