One of the authors here. The neat thing about this set up is that these streaming examples are executing against a real stream processor in the browser.
The interactive examples were built using [Onyx](https://github.com/onyx-platform/onyx) and it's cross-compiled JavaScript sibling, [onyx-local-rt](https://github.com/onyx-platform/onyx-local-rt).
One of the authors here. The neat thing about this set up is that these streaming examples are executing against a real stream processor in the browser. The interactive examples were built using [Onyx](https://github.com/onyx-platform/onyx) and it's cross-compiled JavaScript sibling, [onyx-local-rt](https://github.com/onyx-platform/onyx-local-rt).