An unsolvable PI problem - Code Copying

What really is code copying and what isn't? I think this is the most complex copying discussion in the world. Can copying the functions of an application really be proof that that code has been copied? I think the answer is no. If the developer knows these functions, then no.

The other problem is that functions are always universal. How possible is it for a programmer to steal or copy code? For Example, Are those using Javascript management pack NPM a code thief?

I don't think it's possible for a programmer to steal code. The functions of a programming language are universal and depend on universal rules. The developer can only copy the idea of queuing these functions. But about the same functions, it has the same information. And it will use the same functions. The difference between the two pieces of code is the functions the developer uses and their order. Getting the idea of using these functions can it really count as a duplicate? The answer must be no.

If the developer knows the meaning of the code he is using, I think it is not theft.

A discussion on this topic
https://stackoverflow.blog/2020/05/20/good-coders-borrow-great-coders-steal/