Get your own Vue server
App.vue
CompOne.vue
main.js
 
<template>
  <h2>Component One</h2>
  <p>This is a component.</p>
  <button @click="counter++">Add One</button>
  <p>{{ counter }}</p>
</template>
  
<script>
export default {
  data() {
    return {
      counter: 0
    }
  },
  renderTracked(evt) {
    console.log("renderTracked: ",evt);
    alert("renderTracked");
  }
}
</script>                  
http://localhost:5173/