ভিইউই onBeforeUpdate

<!DOCTYPE html>
<html>
<body>

<div id="app">
  <p>কাউন্ট: {{count}}</p>
  <button @click="count++">বৃদ্ধি</button>
</div>

<script src="https://unpkg.com/vue@3/dist/vue.global.js"></script>
<script>
const {createApp, ref, onBeforeUpdate} = Vue;
createApp({
  setup() {
    const count = ref(0);
    onBeforeUpdate(() => {
      console.log("DOM is about to update");
    });
    return {count};
  }
}).mount("#app");
</script>
</body>
</html>