| 1 | import { Observable, EventData } from '../../../data/observable';
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| 2 |
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| 3 | /**
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| 4 | * Attaches a WeakEventListener.
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| 5 | * @param source Observable class which emits the event.
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| 6 | * @param eventName The event name.
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| 7 | * @param handler The function which should be called when event occurs.
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| 8 | * @param target Subscriber (target) of the event listener. It will be used as a thisArg in the handler function.
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| 9 | */
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| 10 | export function addWeakEventListener(source: Observable, eventName: string, handler: (eventData: EventData) => void, target: any): void;
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| 11 |
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| 12 | /**
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| 13 | * Removes a WeakEventListener.
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| 14 | * @param source Observable class which emits the event.
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| 15 | * @param eventName The event name.
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| 16 | * @param handler The function which should be called when event occurs.
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| 17 | * @param target Subscriber (target) of the event listener. It will be used as a thisArg in the handler function.
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| 18 | */
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| 19 | export function removeWeakEventListener(source: Observable, eventName: string, handler: (eventData: EventData) => void, target: any): void;
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