About require function

[raccoon666666]

Node packaged the .js file as IIFE and passed in require as a parameter.
My question is >>
Why is it necessary to pass in the require function and directly use the global require function?
Isn't it the same?

[bnoordhuis]

require() resolves paths relative to the module that calls it. A single global require() doesn't know what module calls it, not in enough detail to function properly.

It's technically possible to reconstruct the caller's details through V8's C++ API but that's slower and more complicated than an IIFE.

[raccoon666666]

Thank you for your help. I think, there is still a lot details of modular implementation of Nodejs to learn for me.