Monitor the bottom button of page scrolling position positioning (including the solution that page initialization positioning does not take effect on mouse sliding)

// The key is After getting the data, call the listening method to prevent the page height from not holding up
// It leads to positioning problems caused by inaccurate calculation of the newly entered page

<template>
 <div >
    <div :class="isFixed? 's-bottom':'s-bottom s-bottmo-fixed'">  Elements that need to be located <div >
  </div>
</template>
<script>
export default {
    
  layout: 'timeline',
  name: 'shopping',
  data() {
    
    return {
    
      isFixed:false,
    }
  },  
  mounted () {
    // to window Add a scrolling event 
    window.addEventListener('scroll', this.handleScroll)
  },
destroyed () {
    // To leave the page, you need to remove the monitored event 
  window.removeEventListener('scroll', this.handleScroll)
},
  methods: {
    
    handleScroll () {
    
  let scrollTop = document.documentElement.scrollTop || document.body.scrollTop;
       let clientHeight = document.documentElement.clientHeight;
       let scrollHeight = document.documentElement.scrollHeight;
       if (scrollTop + clientHeight >= (scrollHeight-50)) {
    
          this.isFixed = true
       } else {
    
          this.isFixed = false

       }
  },
 //  Get a list of shopping carts 
    async getCartGoods() {
    
      const params = {
    
        ...this.params,
        ...this.goodsForm
      }
      let data = await this.$api('mallWeb.cartGoods')(params)
      this.goodList = data.dataList;
      this.total = data.total
      //  The key is   After getting the data, call the listening method to prevent the page height from not holding up 
      // It leads to positioning problems caused by inaccurate calculation of the newly entered page 
  	  this.$nextTick(()=>{
    
        this.handleScroll()
      })
}
```}