What's wrong - n(...) is not a function?

Question

JavaScript

I made it interactive according to ES6+ standards (the console was clean)
After I run the code through Webpack + Babel, then an error appears - n(...) is not a function
Can you tell me where it comes from? Such variables, functions, etc. did not create in code

Answer 1

Solved - the problem turned out to be in the closest polyfill call.
To do this, I added a variable, i.e. like this - const elementsClosest = elementClosest(window);