Not all events are the same in JavaScript. Some events are user-initiated ... You can check the event type and the event phase of any event object by using the type and eventPhase properties ...

This library emulates several aspects of how events are triggered and managed in popular JavaScript libraries such as jQuery: An event object is dispatched to all listeners. The event object holds ...

Unlike objects, primitives do not have properties or methods, but JavaScript automatically wraps primitive values with object counterparts when necessary (e.g., when calling methods on strings).