Create an event emitter
创建一个事件发射器
Optional
Optional pre-existing listener map to initialize with. 可选的预设监听器映射
A new event emitter instance. 新的事件发射器实例
const emitter = createEmitter()// listen for an eventemitter.on('event-name', (data) => console.log(data))// emit an eventemitter.emit('event-name', data) Copy
const emitter = createEmitter()// listen for an eventemitter.on('event-name', (data) => console.log(data))// emit an eventemitter.emit('event-name', data)
Create an event emitter
创建一个事件发射器