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This is a collection of items, each specifying one general rule, to help you writeRxJava code more effectively. It is modeled after two of my favorite technical books,Effective C++ andEffective Java. I appreciate not only the soundness of their contents, but the brevity of their writing style. I hope that Effective RxJava has the same value proposition.

For each rule I've attempted to provide relevant example code -- most of which is currently in production in theKhan Academy Android app.

• Use Retrolambda
• Emit immutable values
• UnderstandObservable and observer chains
• Convert functions toObservable
• Convert callbacks toObservable
• UnderstandsubscribeOn andobserveOn
• UnderstandswitchMap
• Test emitted values usingTestObserver
• Test work scheduling usingTestScheduler
• Usecompose for operator sequences
• Optimize your subscribers