In the console of Chrome Developer Tools we are able to view all the variables and functions that are in scope for a given page, like shown in this screenshot which shows a function called "buildIssInitObject" defined on our favorite shopping site <http://grab.by/RbjQ>.

But what is not shown is where this function or variable is defined. Usually a page loads many source files, so how to see in which of these a given function or variable displayed in the console has been defined?