MessageEvent interface
E856200
The MessageEvent interface is a web API object representing messages sent between different browsing contexts or threads, such as web workers, including the data and metadata associated with each message.
All labels observed (1)
| Label | Occurrences |
|---|---|
| MessageEvent interface canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10328936 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: MessageEvent interface Context triple: [Web workers, uses, MessageEvent interface]
-
A.
MapMessage interface
The MapMessage interface is a Java Message Service (JMS) message type that allows applications to send and receive messages containing a set of name–value pairs.
-
B.
Got Event
Got Event is a Gothenburg-based municipal events company that manages and operates major sports and entertainment venues in the city.
-
C.
Message API
Message API is a core component of Jakarta Mail that defines the interfaces and classes for creating, accessing, and manipulating email messages in Java applications.
-
D.
HMEventTrigger
HMEventTrigger is a HomeKit framework class used to define and manage automation triggers that fire in response to specific events in a smart home environment.
-
E.
Messages for Web
Messages for Web is the browser-based interface that lets users send and receive SMS and RCS messages from their computer using Google Messages on their phone.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: MessageEvent interface Target entity description: The MessageEvent interface is a web API object representing messages sent between different browsing contexts or threads, such as web workers, including the data and metadata associated with each message.
-
A.
MapMessage interface
The MapMessage interface is a Java Message Service (JMS) message type that allows applications to send and receive messages containing a set of name–value pairs.
-
B.
Got Event
Got Event is a Gothenburg-based municipal events company that manages and operates major sports and entertainment venues in the city.
-
C.
Message API
Message API is a core component of Jakarta Mail that defines the interfaces and classes for creating, accessing, and manipulating email messages in Java applications.
-
D.
HMEventTrigger
HMEventTrigger is a HomeKit framework class used to define and manage automation triggers that fire in response to specific events in a smart home environment.
-
E.
Messages for Web
Messages for Web is the browser-based interface that lets users send and receive SMS and RCS messages from their computer using Google Messages on their phone.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
Event interface
ⓘ
Web API interface ⓘ |
| availableInContext |
BroadcastChannel
NERFINISHED
ⓘ
MessagePort ⓘ ServiceWorker ⓘ SharedWorker ⓘ Window ⓘ Worker ⓘ |
| browserSupport | supported by major modern browsers ⓘ |
| createdBy |
BroadcastChannel message dispatch
ⓘ
postMessage ⓘ server-sent events ⓘ |
| definedInSpecification |
HTML Living Standard
NERFINISHED
ⓘ
WHATWG HTML NERFINISHED ⓘ |
| eventTypeExample |
"message"
ⓘ
"messageerror" ⓘ |
| hasConstructor | MessageEvent() ⓘ |
| hasMethod | initMessageEvent ⓘ |
| hasProperty |
bubbles
ⓘ
cancelable ⓘ composed ⓘ currentTarget ⓘ data ⓘ lastEventId ⓘ origin ⓘ ports ⓘ source ⓘ target ⓘ timeStamp ⓘ type ⓘ |
| inheritsFrom | Event ⓘ |
| isCancelable | false for typical message events ⓘ |
| isComposed | false for typical message events ⓘ |
| lifecycle | dispatched to event listeners registered for "message" ⓘ |
| propertyType |
data can be any serializable JavaScript value
ⓘ
lastEventId is a DOMString ⓘ origin is a DOMString ⓘ ports is a FrozenArray<MessagePort> ⓘ source is a WindowProxy or MessagePort or ServiceWorker or null ⓘ |
| relatedInterface |
BroadcastChannel
ⓘ
MessagePort NERFINISHED ⓘ ServiceWorker NERFINISHED ⓘ Window.postMessage NERFINISHED ⓘ Worker ⓘ |
| securityConsideration | origin should be checked to validate message source ⓘ |
| usedFor |
communication between browsing contexts
ⓘ
communication with Web Workers ⓘ cross-context messaging ⓘ postMessage API callbacks ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: MessageEvent interface Description of subject: The MessageEvent interface is a web API object representing messages sent between different browsing contexts or threads, such as web workers, including the data and metadata associated with each message.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.