Custom Event
Noun · Development
Definitions
An event defined by an application rather than built into the underlying platform, used to signal domain-specific actions or state changes. Custom events help decouple producers and consumers when standard callbacks or native events are not expressive enough.
In plain English: An application-defined event used to signal something meaningful.
Example: "The editor dispatched a custom event when the document became dirty so the autosave banner and shortcut handler could react independently."