How does vue determine whether the peer component is loaded or not?

topic description

I have two component templates An and B. I want to send values from A template to B template when the page is loaded. The view page order is
< router-view name= "A" > < / router-view >
< router-view name= "B" > < / router-view >

.

I wrote the value passing method in the mounted cycle of A, but found that template B has not been mounted yet. How to solve
mounted: function () {

    this.sendUser();//,B

},

Jul.27,2021

can be solved with vuex,

or you can pass the value in A to the parent component of A

, and then to B

.

eventBus find out.
vuex find out.


try using watch to listen for changes in values in data

data(){
    return {
        isBLoading:false
    }
},
watch:{
    isBLoading: function (val, oldVal) {
      console.log('new: %s, old: %s', val, oldVal)
    },
}

this._isMounted

This

is in the property of

vue.

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