ভিইউই computed

<!DOCTYPE html>
<html>
<body>

<div id="app">
  <input v-model="name" placeholder="নাম">
  <input v-model="land" placeholder="দেশ">
  <p>তথ্য: {{info}}</p>
</div>

<script src="https://unpkg.com/vue@3/dist/vue.global.js"></script>
<script>
const {createApp, ref, computed} = Vue;
createApp({
  setup() {
    const name = ref("");
    const land = ref("");
    const info = computed(() => {
      return name.value + " " + land.value;
    });
    return {name, land, info};
  }
}).mount("#app");
</script>
</body>
</html>