vue used Bus

Installation @:  npm install vue-bus

. 1 . @ App.js 
    var EventBus = { 
    the install (Vue, Options) { 
        Vue.prototype $ Bus. = New new Vue () 
    } 
  }; 
  Vue.use (EventBus); 

2 is then in the assembly. You can use $ emit, $ on, $ off separately to distribute, listen, listen to cancel the event: 

Methods: { 
  TODO: function () { 
    the this .. $ $ Bus EMIT ( ' todoSth ' , params );   // params are passed parameter
     // ... 
  } 
} 

3 listener components: 

// ... 
Created () {
   the this $ $ ON Bus (..' TodoSth ' , function ( the params ) {   // parameter acquisition and transmission operation
       // TODO something 
  }) 
}, 
// preferably before the destruction of components
 // clear the event listener 
beforeDestroy () {
   the this . Bus $. $ OFF ( ' todoSth ' ); 
}