JavaScript: Moving to ES2015

Miscellaneous

At the time of writing, the WebRTC specifications were still not finalized. The overall idea of what WebRTC does and how WebRTC works has been finalized. It's just that the APIs are still under development.

For example, WebRTC has introduced an alternative to the navigator.getUserMedia() method, that is, the navigator.mediaDevices.getUserMedia() method. At the time of writing, navigator.mediaDevices.getUserMedia() is not supported in any browsers. The difference between them is that the navigator.mediaDevices.getUserMedia() method is based on the promise pattern, whereas navigator.getUserMedia() is based on the callback pattern. At present, there is no plan to get rid of navigator.getUserMedia() due to the backward compatibility reason, ...