30 lines
742 B
TypeScript
30 lines
742 B
TypeScript
interface PubSub {
|
|
subscribe(event: string, listener: (data: any) => void): void;
|
|
unsubscribe(event: string, listener: (data: any) => void): void;
|
|
publish(event: string, data: any): void;
|
|
}
|
|
|
|
// 创建 PubSub 实例
|
|
const pubSub = new SimplePubSub();
|
|
|
|
// 定义订阅者
|
|
const subscriber1 = (data: any) => {
|
|
console.log(`Subscriber 1 received: ${data}`);
|
|
};
|
|
|
|
const subscriber2 = (data: any) => {
|
|
console.log(`Subscriber 2 received: ${data}`);
|
|
};
|
|
|
|
// 订阅事件
|
|
pubSub.subscribe('event1', subscriber1);
|
|
pubSub.subscribe('event1', subscriber2);
|
|
|
|
// 发布事件
|
|
pubSub.publish('event1', 'Hello, World!');
|
|
|
|
// 取消订阅
|
|
pubSub.unsubscribe('event1', subscriber1);
|
|
|
|
// 发布事件
|
|
pubSub.publish('event1', 'Hello again!'); |