Q:  12.31.19  6:03 pm this is so interesting. I am wondering tho, what does the 36, -1, (\d|\D)(?=,), and x%n% mean? so interesting
A: 36 is the range of the random number picked. has to be between 0 and 35. it's going to be converted to letters/numbers. so that's how many choices there are (26 letters, and 10 numbers). the '-1' means you start the variable "n" at -1. the (\d|\D)(?=,) is regex to search for every letter/number with a comma after. the x%n% means literally the letter x followed by whatever value n currently is. so if n is 5 then x%n% would be x5