SDK Reference
This section is the main documentation of the SDK library. It details the behavior of the API sets, as well as some designs and underlying concepts used internally (and externally).
Some of these concepts are:
Also, the generated API reference is available here. This can be used as quick reference and supplement to this documentation.
The SDK reference is organized bottom-up, meaning it starts with the lowest level of concepts and browser primitives, and then build up to the high level APIs that you saw in the tutorials.