ranataqweembari-ux/python-js-assessment-solutions ? reverse-engineered prompt

I want you to build out this assessment repo with clean, well explained solutions for each problem.

Please implement the two Python challenges, the two JavaScript challenges, and the written debugging notes for the dashboard issue. Make the code easy to read, handle edge cases carefully, and think about performance where it matters. For the coding files, include brief comments that explain the approach and any time or space complexity if it helps. For the debugging writeup, clearly explain what’s causing the slowdown and how you would fix it.

Keep each solution focused on the specific problem in its file, and make sure the answers feel like practical, real world code rather than just something that passes the basic case. If you need to look up current best practices or language details online, go ahead.