It was a C# file for an API that wrapped thousands of reports with a function call for each report, I moved to a design which was a single function for all reports.

I think what had happened is somebody had designed the file and everybody else followed suit patching stuff on - the entire codebase for that app was well below average. they had front end devs who didn’t know any JavaScript. In 2016. I lasted 6 months before I nope.png’d the fuck out.

It’s still not the worst application I’ve ever worked on though