Which category can receive signaling from a Lightning Message Channel?
A.
only descendents (i.e. children)
B.
only direct siblings
C.
page (anywhere on it)
D.
only ancestors (i.e. parents)
The Answer Is:
C
This question includes an explanation.
Explanation:
A Lightning Message Channel can receive signaling from any component on a page (anywhere on it). A Lightning Message Channel is a service that allows components tocommunicate with each other across different Salesforce UI technologies, such as Aura, LWC, Visualforce, and Lightning web apps. A component can subscribe to a message channel and receive events that are published by another component on the same or different page. The message channel acts as a mediator that delivers the events to the subscribers. A Lightning Message Channel does not receive signaling only from descendants (i.e., children), only from direct siblings, or only from ancestors (i.e., parents),as these are limitations of event-based communication. Salesforce References: [Lightning Web Components Developer Guide: Communicate Across Salesforce UI Technologies], [Lightning Web Components Developer Guide: Communicate with Events]
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