判空不显示

src/components/DataModal/common/RealtimeLine.vue

@@ -12,7 +12,7 @@
               :key="key"
               :style="chartBoxStyle"
             >
-              <div class="chart-box-title">{{ workshopList[key].remark+workshopList[key].workshopName }}</div>
+              <div class="chart-box-title"> {{ (workshopList[key].remark || '') + workshopList[key].workshopName }}</div>
 <!--              <div class="chart-box-title">{{ workshopList[key].workshopName }}</div>-->
               <div class="chart-box-content">
                 <div :id="key" style="height: 100%;"/>