Martin Kleppe: 1024+ Seconds of JS Wizardry -- JSConf EU 2013
If think that you know JavaScript, I have some news to you. You are not right. Watch this video and you will be amazed how many things you can do with only 8 characters.
My 5th book "50 Tips on JavaScript" is on sale. Go get it from https://50tips.dev.
Illustrated guide to 50 of the most interesting JavaScript topics.