12 - Optimize performance directive

[cn-2k]

<script setup>
import { ref } from "vue"

const count = ref(0)

setInterval(() => {
  count.value++
}, 1000)
</script>

<template>
  <!-- With the v-once directive, the component was rendered only once, ignoring other updates -->
  <span v-once>Make it not to change: {{ count }}</span>
</template>