VUE3中兄弟组件传值的ts文件

type BusClass={
    emit:(name:string)=>void
    on:(name:string,callback:Function)=>void
}
type PramsKey = string | number |symbol

type List={
    [key:PramsKey]:Array<Function>
}

class Bus implements BusClass{
    list:List
    constructor(){
        this.list={}
    }
    emit(name:string,...args:Array<any>){
    let evnentName:Array<Function>=this.list[name]
    evnentName.forEach(fn=>{
        fn.apply(this,args)
    })
    }
    on(name:string,callback:Function){
      let fn:Array<Function> =this.list[name]||[]
      fn.push(callback)
      this.list[name]=fn 
        }
}

export default new Bus()