Null const
Stores a constant of Null
type.
In-ports
trigger <any>
— any event on this port will trigger the component to emit its constant value.
Out-ports
output Null
— emits an event with a Null
value.
Overview
The Null component emits Null
on the output port immediately after initialization. When the trigger port is connected, the component waits for an event on this port before emitting anything. Subsequently, it emits Null
each time the trigger port receives an event.
The Null component is often used to inject empty initial values to a stream.
Settings
This component has no configurable settings, as it is pre-initialized with a Null
value.