判空

src/components/Course/exam.vue

@@ -327,7 +327,7 @@ export default {
     },
     startTest(){
       apiExamPaper.newPaperContent(this.info.id).then(res=>{
-        if(res.error == ''&&res.result != ''){
+        if(!res.error&&res.result != ''){
           if(this.info.paperType==2){
             this.examPaper.json=res.result;
             let qitems=this.convertToItems(this.examPaper.json);

src/views/case/ManageList.vue

@@ -52,7 +52,7 @@
       <el-table-column label="操作">
         <template slot-scope="scope">
           <el-button-group>
-            <el-button style="margin:0 5px" type="text" v-if="scope.row.recommendRank === ''" @click="suggest(scope.row)" icon="el-icon-medal">榜单推荐</el-button>
+            <el-button style="margin:0 5px" type="text" v-if="scope.row.recommendRank === ''||scope.row.recommendRank === null" @click="suggest(scope.row)" icon="el-icon-medal">榜单推荐</el-button>
             <!-- <el-button type="text" @click="shareItem(scope.row)"  icon="el-icon-share" style="margin:0 5px">推荐</el-button> -->
             <el-button style="margin:0 5px" v-if="!scope.row.isTop && scope.row.confidentialityLevel == '内部'" type="text"
               @click="setTop(scope.row)" icon="el-icon-top">置顶</el-button>

src/views/portal/case/Index.vue

@@ -1507,7 +1507,7 @@ export default {
                 };
               });
               res.result.list.forEach(item=>{
-                item.viewRankTags = item.viewRankTags.slice(0,2)
+                item.viewRankTags = item.viewRankTags.slice(0,2)||[]
               })
               this.caseList.list = res.result.list
               this.getCaseUserData(res.result.list);

src/views/study/Courses.vue

@@ -253,7 +253,7 @@ export default {
         if(res.status==200){
             let localCourseIds=[];//本地在线课程的id集合
             res.result.list.forEach(item=>{
-              if(item.courseImage.startsWith('/upload')){
+              if(item.courseImage?.startsWith('/upload')){
                  item.courseImage=$this.fileUrl+item.courseImage.substring(7)
               }
               if(item.source==2){