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光阴似箭催人老，日月如移越少年。
var myTimer = setInterval(....);
If it needs to be eliminated, then
clearInterval(myTimer)
You posted such a large piece of code, but you didn’t make it clear what purpose you wanted to send it to or what kind of problems you encountered.
This way of writing is not very good~If you are self-study, it is recommended to find some newer and better-produced resources, or MDN, don’t be led astrayHow to optimize specifically, here are two tips:
Event Agent
Closure
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
If it needs to be eliminated, then
You posted such a large piece of code, but you didn’t make it clear what purpose you wanted to send it to or what kind of problems you encountered.
This way of writing is not very good~
If you are self-study, it is recommended to find some newer and better-produced resources, or MDN, don’t be led astray
How to optimize specifically, here are two tips:
Event Agent
Closure