When I got to that part of the article I stared researching bitwise operators to try and give a short explanation. I couldn't sum it up well in the voice I wanted to. So I decided to just say, "I don't know, and that's OK." I try to write in a way that's accessible to people that are maybe newer at programming. Maybe without a CS background, like me. With this, I felt like there would likely be so many new concepts, that it would help to leave one out that wasn't essential to building the example.
For my next post I should research and write about bitwise operators.
I also do not know what a linked list or binary tree is, but I'll certainly take the time to learn about them in the future.
Thanks for reading it and commenting.