[Vuejs]-How to dynamically create and attach an element to the dom when a user clicks a button in VueJS

In my opinion , render just like a function that seems like data() ,so I think you can not use in that way,
If my opinion is right , the render function may same like the render in React.js , it will return a VNode Tree, and in default vue(use template expect render), it will make by template and run when the VNode should be refresh
I hope I can help you