vue3监听resize窗口事件(离开页面要销毁窗口事件)

//封装getWindowInfo()方法
const getWindowInfo = () => {
	const windowInfo = {
		width: window.innerWidth,
		hight: window.innerHeight
	}
	console.log(windowInfo);
};

//通过window监听
window.addEventListener('resize', getWindowInfo);
//缺点是会频繁触发这个事件，造成页面卡顿，优化的方法使用防抖或节流。

//使用防抖 (setTimeout定时器)
const getWindowInfo = () => {
	const windowInfo = {
		width: window.innerWidth,
		hight: window.innerHeight
	}
};
const debounce = (fn, delay) => {
	let timer;
	return function() {
		if (timer) {
			clearTimeout(timer);
		}
		timer = setTimeout(() => {
			fn();
		}, delay);
	}
};
//触发事件    触发时间（指定时间内执行事件）
const cancalDebounce = debounce(getWindowInfo, 500);
window.addEventListener('resize', cancalDebounce);

//vue3 使用生命周期销毁钩子
  onUnmounted(() => {
        console.log('onUnmounted','打印是否生效');
        //移除监听事件
        window.removeEventListener('resize', cancalDebounce);
   })

<script>
import { onMounted } from 'vue'  // 首先需要通过组合式API的方式把声明周期钩子引入项目

  export default {
    setup() {
      onMounted(() => {   // 在 setup 函数中，使用箭头函数的方式使用。
        console.log('onMounted')
      })
    },
  }
</script>

<template>
  <div>
    <h1>content : {{num}}</h1>
    <el-button type="primary" @click="num++">num++</el-button>
  </div>
</template>
<script>
  import { onBeforeMount, onMounted, onBeforeUpdate, onUpdated, onBeforeUnmount, onUnmounted, onErrorCaptured, ref } from 'vue'
  export default {
    setup() {
      const num = ref(0)
      onBeforeMount(() => {
        console.log('onBeforeMount')
      })
      onMounted(() => {
        console.log('onMounted')
      })
      onBeforeUpdate(() => {
        console.log('onBeforeUpdate')
      })
      onUpdated(() => {
        console.log('onUpdated')
      })
      onBeforeUnmount(() => {
        console.log('onBeforeUnmount')
      })
      onUnmounted(() => {
        console.log('onUnmounted')
      })
      onErrorCaptured(() => {
        console.log('onErrorCaptured')
      })
      console.log('setup执行了')
      return { num }
    },
  }
</script>
<style scoped>
</style>