新增 字段问题

大佬我想问下 ,在数据里面在增加新的字段 { id: 56, spell: "aba", name: "阿坝", phoneNumber: "13143599999" }, { id: 57, spell: "akesu", name: "阿克苏", phoneNumber: "247" }, 然后在phone-search-list 逻辑代码中增加 item.phoneNumber.indexOf(this.keyword) > -1 if ( item.spell.indexOf(this.keyword) > -1 || item.name.indexOf(this.keyword) > -1 || item.phoneNumber.indexOf(this.keyword) > -1 ) 报错 !phone-search-list.vue:76 Uncaught TypeError: Cannot read property 'indexOf' of undefined