修复选项清空bug

2021-02-23 08:51:04 +08:00
parent cb9c5ffcc5
commit aac89f3df7
32 changed files with 61 additions and 56 deletions
--- a/source/vue/xzs-admin/src/views/exam/question/edit/single-choice.vue
+++ b/source/vue/xzs-admin/src/views/exam/question/edit/single-choice.vue
@@ -157,8 +157,13 @@ export default {
    },
    questionItemAdd () {
      let items = this.form.items
-      let last = items[items.length - 1]
-      let newLastPrefix = String.fromCharCode(last.prefix.charCodeAt() + 1)
+      let newLastPrefix
+      if (items.length > 0) {
+        let last = items[items.length - 1]
+        newLastPrefix = String.fromCharCode(last.prefix.charCodeAt() + 1)
+      } else {
+        newLastPrefix = 'A'
+      }
      items.push({ id: null, prefix: newLastPrefix, content: '' })
    },
    submitForm () {