推荐
import { createRequire } from 'module'
/**
* 发布订阅者
* 使用此模块需先安装tiny-emitter
*/
const require = createRequire(import.meta.url)
let TinyEmitter
let emitter
try {
const mod = require('tiny-emitter')
TinyEmitter = mod.TinyEmitter
emitter = new TinyEmitter()
} catch (error) {
console.error('请先安装tiny-emitter才可使用event模块')
}
export { TinyEmitter, emitter }import { createRequire } from 'module'
/**
* 发布订阅者
* 使用此模块需先安装tiny-emitter
*/
const require = createRequire(import.meta.url)
let TinyEmitter
let emitter
try {
const mod = require('tiny-emitter')
TinyEmitter = mod.TinyEmitter
emitter = new TinyEmitter()
} catch (error) {
console.error('请先安装tiny-emitter才可使用event模块')
}
export { TinyEmitter, emitter }其他
如果存在原生的发布者订阅者模块可以直接使用，比如 nodejs 中的 EventEmitter
ts
import { EventEmitter } from 'events'
class MyEmiter extends EventEmitter {}
const myEmitter = new MyEmiter()
myEmitter.on('hello', () => {
console.log('hello 有人喊你啦')
})
myEmitter.emit('hello')import { EventEmitter } from 'events'
class MyEmiter extends EventEmitter {}
const myEmitter = new MyEmiter()
myEmitter.on('hello', () => {
console.log('hello 有人喊你啦')
})
myEmitter.emit('hello')