Caesar Cipher in JavaScript

Pssst...Don't tell freeCodeCamp about this, but here's a solution in video form to one of their more complex problems, the 'Caesar Cipher' challenge on the JavaScript Data Structures & Algorithms certification.

In this challenge, I decrypt strings encoded with the ROT13 algorithm, a simple substitution cipher credited to Emperor Julius Caesar of the Roman Empire.

It's a bit longer than my usual videos, but do check it out for interesting history takes and analysis of the algorithm beyond simple code.