Javascript directs this in the function parameter in setinteval to a specific object.

I was blinded when I saw this question, because I didn't clear it at that time and thought about it for a long time. Then I came to the Internet to check it, A foreign website found that the scope of the functions after setinterval and setTimeout is global, that is, this points to a global object.
This problem is troublesome. I often need to use this in the loop function to reference the current object. Maybe you can use a closure, but the actual situation is not so simple. When there are more object instances, the closure is also messy.
My wish is to make this in the loop function still point to the current context object, without passing parameters or closures (in fact, this is also a closure, but it looks more natural in form );
Example: (Part 1 CodeTo send requests regularly) Copy codeThe Code is as follows: