44 lines
1.2 KiB
TypeScript
44 lines
1.2 KiB
TypeScript
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export = EventEmitter;
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/**
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* Constructs a new event emitter instance.
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* @classdesc A minimal event emitter.
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* @memberof util
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* @constructor
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*/
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declare class EventEmitter {
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/**
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* Constructs a new event emitter instance.
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* @classdesc A minimal event emitter.
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* @memberof util
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* @constructor
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*/
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constructor();
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/**
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* Registers an event listener.
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* @param {string} evt Event name
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* @param {function} fn Listener
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* @param {*} [ctx] Listener context
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* @returns {util.EventEmitter} `this`
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*/
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on(evt: string, fn: () => any, ctx?: any): EventEmitter;
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/**
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* Removes an event listener or any matching listeners if arguments are omitted.
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* @param {string} [evt] Event name. Removes all listeners if omitted.
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* @param {function} [fn] Listener to remove. Removes all listeners of `evt` if omitted.
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* @returns {util.EventEmitter} `this`
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*/
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off(evt?: string, fn?: () => any): EventEmitter;
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/**
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* Emits an event by calling its listeners with the specified arguments.
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* @param {string} evt Event name
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* @param {...*} args Arguments
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* @returns {util.EventEmitter} `this`
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*/
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emit(evt: string, ...args: any[]): EventEmitter;
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}
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