The chrome devtools are the first stop to debug JavaScript web applications and they include a ridiculous number of features, far more than anyone can keep up with at any point. Even if you are up-to-date, Google developers add new debugging and troubleshooting features almost every version so it's important to brush up on them regularly.
This video goes over new and old-but-unknown console like $0-$4, $_, monitorEvents()/unmonitorEvents(), getEventListeners(), monitor()/unmonitor(), and debug()/undebug(). Plus there's an undocumented feature of debug() that you'll definitely want to know about.
Check out full documentation here:
developers.goo...