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27 lines
874 B
27 lines
874 B
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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// /**
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// * The Observer interface declares the update method, used by subjects.
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// */
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// interface Observer {
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// // Receive update from subject.
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// update(subject: Subject): void;
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// }
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// /**
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// * Concrete Observers react to the updates issued by the Subject they had been
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// * attached to.
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// */
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// class ConcreteObserverA implements Observer {
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// public update(subject: Subject): void {
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// if (subject.state < 3) {
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// console.log('ConcreteObserverA: Reacted to the event.');
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// }
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// }
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// }
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// class ConcreteObserverB implements Observer {
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// public update(subject: Subject): void {
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// if (subject.state === 0 || subject.state >= 2) {
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// console.log('ConcreteObserverB: Reacted to the event.');
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// }
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// }
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// }
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