CODE EXAMPLE FOR JAVASCRIPT

vue3 mounted

<script setup lang="ts">
  onMounted(() => {
    console.log('component mounted');
  });
</script>

//OR

<script lang="ts">
import {defineComponent, onMounted} from 'vue';
export default defineComponent({
  onMounted(() => {
    console.log('component mounted');
  });
});
</script>