var ParentNode = new Vue({
  template: `<div>
    <slot></slot>
  </div>`
})

var ChildrenNode = new Vue({
  el: '#foo',
  data () {
    return {foo: '233'}
  },
  components: {
    parentNode: ParentNode
  },
  template: `<parent-node v-text="foo">
  </parent-node>`
})

console.log(ParentNode, ChildrenNode)