Why was it added? >Will there be yellow wavy lines? do not add? >No
Because there is an extra blank line at the end of your code, of course you will be prompted with a wavy line.
Check if your question mark or > sign is in Chinese
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
Because there is an extra blank line at the end of your code, of course you will be prompted with a wavy line.
Check if your question mark or > sign is in Chinese