dojo._base.loader is a bootstrap module which contains all of the package loading methods.
As with all dojo._base components, these functions are included within Dojo Base. You get this functionality by just including dojo.js in your page.
Configuring Dojo with dojoConfig
Call functions after the DOM has finished loading and widgets declared in markup have been instantiated
Call functions when the page unloads
Call functions when window.onunload fires
Log a debug message to indicate that a behavior has been deprecated
Determine if an object supports a given method
Get a property from a dot-separated string, such as "A.B.C"
Alias for the global scope
Maps module name to a path
Set a property from a dot-separated string, such as "A.B.C"
The current version number of Dojo
Signal fired by impending window destruction