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@konghayao/event-hub

v1.1.3

Published

EventHub 是一个基于 Promise 的事件管理中心,提供可观测的,具有返回的事件触发机制。

Downloads

13

Readme

EventHub 事件管理中心

EventHub 是一个基于 Promise 的事件管理中心,提供可观测的,具有返回的事件触发机制。

经过 Jest 单元测试,覆盖率为 100% 代码高度健全可用

example 示范

npm i @konghayao/event-hub
// using ES6 modules
import EventHub from '@konghayao/event-hub';

// using CommonJS modules
var EventHub = require('@konghayao/event-hub');
const hub = new EventHub(
    // 事件模板
    {
        created() {
            return 'created';
        },
        mounted() {
            // this 指向 你设置的 this
            return this;
        },
        beforeDestroy: [
            () => {
                this.emit('destroyed');
            },
            () => {
                console.log('beforeDestroy');
            },
        ],
        destroyed: [
            () => {
                throw new Error('错误');
            },
            // 错误不会妨碍后面的函数执行
            () => {
                console.log('destroyed 后面的函数被触发啦');
            },
        ],
    },
    success, // EventHub 的 第二个参数是所有函数的 this 指向
);

// 事件绑定
const handle = () => {};
hub.on('eventName2', handle);
hub.on({
    eventName(...params) {
        console.log('this 指向', this);
        console.log('参数接收', params);
    },
    eventName2: [() => {}],
});

// 事件删除
hub.off('eventName2', handle);
hub.off('*'); // 删除全部事件

// 事件触发
hub.emit('eventName');
hub.emit('eventName', '12', '23232'); // 可以传入参数

const result = await hub.emit('eventName', '12', '23232'); // 等待完成并返回每个函数的数据
console.log(result);

License

MIT License