element-ui 自定义排序

// html
<el-table-column
              prop="description"
              label="备注"
              width="250"
              :sortable="true"
              :sort-method="(a,b) => sortMethod(a ,b , 'description')"
              show-overflow-tooltip
            >
              <template slot-scope="scope">
                <span>{{scope.row.description}}</span>
              </template>
            </el-table-column>
// js
   sortMethod(obj1, obj2) {
      // console.log(obj1, obj2)
      const val1 = obj1.description ? 1 : 0
      const val2 = obj2.description ? 1 : 0
      return val1 - val2
    },