EventBundle

Similar to Signal expressions, but resulting in an event. Accessed events return options depending on whether they fire or not, and the complete result of the expression is an event as well.

Events only propagate a value when they are changing, when the system is at rest, events have no values.

Note: We hide implicit parameters of the API in the documentation. They are used to ensure correct creation, and you normally do not have to worry about them, except if you accidentally call the implicit parameter list, in which cas you may get cryptic errors. This is a scala limitation. We also hide the internal state parameter of passed and returned events.