Get your own Vue server
App.vue
CompOne.vue
main.js
 
<template>
  <h1>The 'created' Lifecycle Hook</h1>
  <p>We can see the console.log() message from 'created' lifecycle hook, and the text change we try to do to the Vue data property works, because the Vue data property is already created at this stage.</p>
  <button @click="this.activeComp = !this.activeComp">Add/Remove Component</button>
  <div>
    <comp-one v-if="activeComp"></comp-one>
  </div>
</template>

<script>
export default {
  data() {
    return {
      activeComp: false
    }
  }
}
</script>

<style>
#app > div {
  border: dashed black 1px;
  border-radius: 10px;
  padding: 10px;
  margin-top: 10px;
  background-color: lightgreen;
}
#pResult {
  background-color: lightcoral;
  display: inline-block;
}
</style>                  
<template>
    <h2>Component</h2>
    <p>This is the component</p>
    <p id="pResult">{{ text }}</p>
</template>

<script>
export default {
	data() {
		return {
			text: '...'
		}
	},
  created() {
		this.text = 'initial text';
    console.log("created: The component just got created.");
  }
}
</script>                  
import { createApp } from 'vue'

import App from './App.vue'
import CompOne from './components/CompOne.vue'

const app = createApp(App)
app.component('comp-one', CompOne)
app.mount('#app')
                  
http://localhost:5173/