We recently wrote about a post from CodePen.io that suggested a way of keeping API keys private when publicly sharing code samples. This time, we've gone back to that idea, given a try, and dogfooded it. We used JSBin to not only show how it works, we've embedded the "bin" in our tutorial.
Apache recently released the first 2.x line of Apache Spark. Of the many updates that improve performance, a number of API changes tell the story of the move to 2.0. A new Structured Streaming API and the consolidation of existing APIs provide new capabilities and simplified use.