Reporting an error, please help to solve it
You have already used the helper function, so you can’t write it like this, right?
There is a grammatical error in the report. Check to see if the punctuation marks are missing, or if your punctuation marks are written in Chinese.
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
You have already used the helper function, so you can’t write it like this, right?
There is a grammatical error in the report. Check to see if the punctuation marks are missing, or if your punctuation marks are written in Chinese.