ReferenceError: courseInfo is not defined

在页面中查询所有讲师的时候提示No data

如图:

浏览器控制台信息如下:

//这个是警告

[Vue warn]: Error in created hook: "ReferenceError: courseInfo is not defined"

found in

---> <Info> at srcviewseducourseinfo.vue
       <AppMain> at srcviewslayoutcomponentsAppMain.vue
         <Layout> at srcviewslayoutLayout.vue
           <App> at srcApp.vue
             <Root>

//这个是错误
//说这个courseInfo没有定义

ReferenceError: courseInfo is not defined
    getListTeacher course.js:18
    getListTeacher info.vue:83
    created info.vue:75
    VueJS 59
    init vue-router.esm.js:2508
    init vue-router.esm.js:2507
    updateRoute vue-router.esm.js:1997
    transitionTo vue-router.esm.js:1875
    confirmTransition vue-router.esm.js:1984
    step vue-router.esm.js:1714
    step vue-router.esm.js:1721
    step vue-router.esm.js:1721
    runQueue vue-router.esm.js:1725
    confirmTransition vue-router.esm.js:1979
    step vue-router.esm.js:1714
    step vue-router.esm.js:1718
    iterator vue-router.esm.js:1964
    resolve vue-router.esm.js:1757
    once vue-router.esm.js:1833

截图:

 原因:

后来发现在course.js的查询所有讲师方法中多了一行, 删除data就好了

 测试:

给其中一个讲师添加课程

 

添加成功后讲师id有值了

 编码不细心, 中途两行泪!