Every javascript file is a snippet that can be saved as a snippet in Chrome Dev Tools or used directly through the javascript console which is also in Chrome Dev Tools.
A snippet used to keep the list of the methods on the right side of the page so you don't have to scroll back to the top each time you wanna see a specific method.
It also adds a small button on the top right corner to return to the top of the page so you don't have to scroll.