This video provides a high level overview of Google Chrome's Command Line API functions.
The Command Line API contains a collection of functions for performing common tasks like selecting and inspecting DOM elements, displaying data in a readable format, stopping and starting the profiler, monitoring DOM events, and much more.
Debugging is an important part of being a developer. And knowing how to leverage Google Chrome's console can be very beneficial. It has some very well documented functions that can help you get your web application in better shape.