Very keen Paul! I’m taking this in conjunction with self-study elsewhere (Treehouse JS Full stack and Dave McFarland’s Missing Manual JS / jQuery textbook) so am going quite slowly, but would love someone to help keep me honest. Have just sent you a message!
I experienced some strange behaviour whilst running the jsbin.com code snippet for the symbols lesson (1.2.08). Nothing happened the first time I ran the code (ctrl + enter), but on refreshing the page a few times it worked.
PS – just got started today. This is AWESOME! Keep it up Zac, v cool.