courseGrade

src/mixins/mixin.js

@@ -291,7 +291,7 @@ export const myMixin = {
       if(courseGrade && !courseGrade2){
         let array = this.packageArray.sort((a, b) => a.sort - b.sort)
         for(let item2 of array){
-          if(courseGrade.includes(item2.grade)){
+          if(courseGrade.data && courseGrade.data[0] && courseGrade.data[0][0] && courseGrade.data[0][0].grade.includes(item2.grade)){
             coursePackageName2 = item2.coursePackage;
             courseName = item2.courseName;
             courseGrade2 = item2.grade;