<html>

<body>

  <div id="app">
    {{ n }}
  </div>


  <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
  <script src="https://cdn.jsdelivr.net/npm/@vue/composition-api@0.3.2/dist/vue-composition-api.umd.js"></script>
  <script>
    Vue.use(vueCompositionApi.default);


    new Vue({
      el: "#app",

      setup(){
        return {
          n: 2
        }
      }
    })
  </script>

</body>
</html>