Recently I came across a requirement at work where I had to find out if a particular post had pagination (page-breaks) and if yes then whether the user is on the last of those pages.
Even though this sounded simple, I had to dig into WordPress core source code to find out a way to solve it since there were no helper functions and you have to use global variables to figure it out.
I thought of writing about my findings here so that it would be helpful to others and I would also know where to look up when I need to do it again 🙂