- "listener" is suited for creating temporary or anonymous listeners that are automatically destroyed when their source object or event handle goes out of scope. This is useful for short-lived listening scenarios or when listeners should only exist within a specific scope, simplifying memory management.
- "addlistener" is used for persistent listeners that need explicit management, ideal for long-lived applications or complex UIs where listeners should remain active for the duration of the application or until explicitly removed.
addlistener vs. listener
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I understand the differences between listener and addlistener. I don't see much utility there, as I always store my listener in variables or properties.
Still, I can't see a situation where listener is useful and addlistener should not be used. I don't see any case where an object goes out of scope and returns again, other than in parallel processing.
Anyone knows some examples? Or only in parallel processing situations?
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Answers (1)
Pratyush
on 8 Apr 2024
Hi Andre,
The distinction between MATLAB's "listener" and "addlistener" functions lies in their use cases related to the lifecycle and management of event listeners:
Beyond parallel processing, differences matter in scenarios like modular application design, temporary event monitoring, and resource management. While "addlistener" provides control and explicit management, "listener" offers a simpler approach for automatically managed, scope-bound listeners. The choice between them depends on your application's architecture and resource management needs.
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