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[Vue] front end error: cannot read properties of undefined (reading 'split')

2022-05-15 02:10:18【Triumph-light】

The emergence of problems ：

Because when doing the project , Want to convert numbers into Chinese characters ：
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But there will be a report on the console Cannot read properties of undefined (reading ‘split‘)
When debugging, it is found that the data will appear slowly

The cause of the problem ：

Because it's a request to get this studentinfo This data , So before we get the data , It will be for undefined, There is no way to use it at this time .
In short, it is the problem of data asynchrony .

solution ：

When the data is undefined When , Remove this , When it's not for undefined When it's time to execute , So add a if Sentence to judge

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author[Triumph-light],Please bring the original link to reprint, thank you.
https://en.qdmana.com/2022/132/202205120526195658.html

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