Why does vue add quotes before the table when using map in a template string?

Question

Vue.js

I want to create a table in a template string, but quotes are added to the very beginning, how can I fix this?
https://jsfiddle.net/xzt3vhb0/

Answer 1

On the result, you need to .join('')call
https://jsfiddle.net/yarkov_aleksei/vgx3sb16/

Answer 2

Are you trying to use the React approach in Vue.
You need to look into the directive https://jsfiddle.net/alexander_js_developer/dp4crouw/1/v-for