vue 监听div宽高变化

npm install element-resize-detector --save

import elementResizeDetectorMaker from "element-resize-detector";

mounted() {
    const _this = this;
    const erd = elementResizeDetectorMaker();
    erd.listenTo(document.getElementById("aa"), element => {
      _this.$nextTick(() => {
        //监听到事件后执行的业务逻辑
      });
    });
  },

说明：

document.getElementById("aa")

表示，监听id为aa的div