[Vuejs]-Vuejs dynamic div text

You can’t pass data between components like that.

For parent -> child communication use props: https://v2.vuejs.org/v2/guide/components.html#Passing-Data-to-Child-Components-with-Props

For child -> parent communication use events: https://v2.vuejs.org/v2/guide/components.html#Listening-to-Child-Components-Events

For more complex communication you can use vuex

Another option for direct method call on child component is through refs: How to access to a child method from the parent in vue.js