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EventHelper

EventHelper

new

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 Cesium.EventHelper();

helper.add(someObject.event, listener1, this);
helper.add(otherObject.event, listener2, this);

// later...
helper.removeAll();
See:
Source:

Methods

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.
Returns:
Function A function that will remove this event listener when invoked.
See:

Unregisters all previously added listeners.

See: