获取dom标签高度

<template>
    <div class="supplier" ref="supHeight">
	</div>
<template>
<script setup lang="ts">
	import { ref, reactive,onMounted } from 'vue'
	let supHeight = ref()
	onMounted(()=>{
		let s = supHeight.value?.clientHeight
		console.log(s)
	})
</script>