24 lines
544 B
JavaScript
24 lines
544 B
JavaScript
class EventEmitter {
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constructor() {
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this.handlers = {}
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}
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emit(event) {
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this.handlers[event]?.forEach(h => h());
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}
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addHandler(event, handler) {
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if(!this.handlers[event]) {
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this.handlers[event] = [handler];
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} else {
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this.handlers[event].push(handler);
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}
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}
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}
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const emitter = new EventEmitter();
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emitter.addHandler("start", () => console.log("Started!"));
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emitter.addHandler("end", () => console.log("Ended!"));
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emitter.emit("end");
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emitter.emit("start");
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