Engine API Reference - v2.6.1
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    Class EventHandle

    Event Handle that is created by EventHandler and can be used for easier event removal and management.

    const evt = obj.on('test', (a, b) => {
    console.log(a + b);
    });
    obj.fire('test');

    evt.off(); // easy way to remove this event
    obj.fire('test'); // this will not trigger an event
    // store an array of event handles
    let events = [];

    events.push(objA.on('testA', () => {}));
    events.push(objB.on('testB', () => {}));

    // when needed, remove all events
    events.forEach((evt) => {
    evt.off();
    });
    events = [];
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