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Streaming Hierarchy

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This example demonstrates how to build a nested hierarchy from a streaming datasource.

Groups in the hierarchy are generated and sorted “on demand” as they are pulled from the data$ Observable.

Rx.Observable.groupBy() produces GroupedObservables which are scanned into arrays and then combined using flatMapLatest(Rx.Observable.combineLatest).

(Note: It’s important to shareReplay the GroupedObservables)

This example also uses babel-standalone to enable in-browser ES6 features.