el-table渲染慢卡顿问题最优解决方案_vue.js_

#eagleMapContainer{ overflow-y: auto; margin-top: 10px; min-height: 150px; max-height: 600px; } #eagleMapContainer::-webkit-scrollbar { width: 6px; /*对垂直流动条有效*/ height: 6px; } #eagleMapContainer::-webkit-scrollbar-track{ background-color:rgba(0,0,0,0.1); } #eagleMapContainer::-webkit-scrollbar-thumb{ border-radius: 6px; background-color: rgba(0,0,0,0.2); } /*定义右下角汇合处的样式*/ #eagleMapContainer::-webkit-scrollbar-corner { background:rgba(0,0,0,0.2); } 

 hanldeScroll(e) { // 获取eagleMapContainer的真实高度 const boxHeight = document.getElementById('eagleMapContainer').offsetHeight // 获取table_list的真实高度（浮动内容的真实高度） const tableHeight = document.getElementById('table_list').offsetHeight // boxHeight和滑块浮动的高度相差小于50 && 不在加载中 && 不是最后一页 if (tableHeight - (e.target.scrollTop + boxHeight) < 50 && !this.loading && this.listPage < (this.tableList.length / 300)) { // 第一次触发时，记录滑块高度 // data里scrollTop，listPage默认为0 if (!this.scrollTop) { this.scrollTop = e.target.scrollTop } // 触发下拉加载更多 this.queryMoreStat(true, tableHeight, boxHeight) } else if (e.target.scrollTop === 0 && !this.loading) { // 如果滑块上拉到顶部，则向上加载300条 this.queryMoreStat(false, tableHeight, boxHeight) } } 

 queryMoreStat(type, tableHeight, boxHeight) { this.loading = true // 触底加载 if (type) { this.listPage = this.listPage + 1 const centerPage = this.listPage * 300 const startPage = centerPage >= 300 ? centerPage - 300 : centerPage const endPage = centerPage + 600 const newList = this.tableList.slice(startPage, endPage) if (this.listPage > 0) { const box = document.getElementById('eagleMapContainer') // 视图跳到触发的数据，补回50的高度差值 box.scrollTop = this.scrollTop + 50 } this.list = newList } else { // 置顶加载 if (this.listPage > 0) { this.listPage = this.listPage - 1 const centerPage = this.listPage * 300 const startPage = centerPage >= 300 ? centerPage - 300 : centerPage const endPage = centerPage + 600 const newList = this.tableList.slice(startPage, endPage) if (this.listPage > 0) { const box = document.getElementById('eagleMapContainer') box.scrollTop = tableHeight - this.scrollTop - boxHeight } this.list = newList } else { this.list = this.tableList.slice(0, 300) } } this.$nextTick(() => { this.loading = false }) }