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28 lines
694 B
JavaScript
28 lines
694 B
JavaScript
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class EventManager {
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constructor() {
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this._registry = {};
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}
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subscribe(name, handler) {
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if (!name || !handler) throw new Error("name and handler are required.");
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if (!this._registry[name]) this._registry.name = [];
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this._registry[name].push(handler);
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}
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unsubscribe(name, handler) {
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if (!this._registry[name]) return;
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const index = this._registry[name].indexOf(handler);
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if (index <= -1) return;
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this._registry[name].splice(index, 1);
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}
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publish(name, ...args) {
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if (!this._registry[name]) return;
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const handlers = this._registry[name];
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handlers.forEach((handler) => {
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handler(...args);
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});
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}
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}
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export default EventManager;
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