new EventHelper
A convenience object that simplifies the common pattern of attaching event listeners to several events, then removing all those listeners at once later, for example, in a destroy method.
Example
var helper = new EventHelper(); helper.add(someObject.event, listener1, this); helper.add(otherObject.event, listener2, this); // later... helper.removeAll();
See:
Source:
Methods
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add
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Adds a listener to an event, and records the registration to be cleaned up later.
Parameters:
Name Type Argument Description event
Event The event to attach to. listener
Function The function to be executed when the event is raised. scope
Object <optional>
An optional object scope to serve as the this
pointer in which the listener function will execute.Throws:
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DeveloperError : event is required and must be a function.
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DeveloperError : listener is required and must be a function.
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removeAll
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Unregisters all previously added listeners.