Cannot read property 'slice' of undefined

时间 2020-11-18

标签数组 echarts 调试对象 blog 接口 class 请求数据繁體版

原文原文链接

echarts.js Uncaught TypeError: Cannot read property 'slice' of undefined数组把调试台的左侧小箭头点开，查看报错的具体行数方便定位到错误位置，打印这个错误位置的值查看一下：echarts 1.错误可能因为数组或对象未定义或为null 引发的，因此查看获取数据的接口是否请求到了数据。调试 2.查看返回的数据格式是否和以前的数据

>>阅读原文<<

1. Uncaught (in promise) TypeError: Cannot read property ‘slice‘ of undefined
2. Cannot read property '_withTask' of undefined
3. TypeError: Cannot read property 'compilation' of undefined
4. "TypeError: Cannot read property ‘_wrapper’ of undefined"
5. TypeError: Cannot read property 'key' of undefined
6. TypeError Cannot read property ‘nativeElement’ of undefined
7. TypeError: Cannot read property 'split' of undefined
8. Cannot read property 'get' of undefined
9. Cannot read property 'READURL' of undefined
10. TypeError: Cannot read property 'getUserMedia' of undefined
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1. Uncaught (in promise) TypeError: Cannot read property ‘slice‘ of undefined
2. Cannot read property '_withTask' of undefined
3. TypeError: Cannot read property 'compilation' of undefined
4. "TypeError: Cannot read property ‘_wrapper’ of undefined"
5. TypeError: Cannot read property 'key' of undefined
6. TypeError Cannot read property ‘nativeElement’ of undefined
7. TypeError: Cannot read property 'split' of undefined
8. Cannot read property 'get' of undefined
9. Cannot read property 'READURL' of undefined
10. TypeError: Cannot read property 'getUserMedia' of undefined

>>更多相关文章<<