el-checkbox-group获取最新选中的那一项的label

<el-checkbox-group v-model="checkedMarker" @change="markerChange">
        <div v-for="(item, index) in markerList" :key="index">
          <el-checkbox :label="item.name" class="markerItem" @change="getWhatMarker">{{ item.name }}</el-checkbox>
          <div v-if="index === 0" class="lineRight" />
        </div>
      </el-checkbox-group>

data() {
    return {
          checkedMarker: [],
  markerList: [
        {
          id: -1,
          name: "故障设备",
          checked: true
        },
        {
          id: -1,
          name: "路口",
          checked: false
        },
      ], // 省略....... 
    }
},


    

  markerChange(e) {
      console.log(e) // ['故障设备', '视频监控']
    },


 getWhatMarker(e, name) {
      console.log(e, name.target._value) // true '视频监控'
    },