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RxJava — Schedulers — What, when and how to use it? Brief introduction of RxJava schedulers. Schedulers.io() – This is used to perform non-CPU-intensive operations like making network calls, reading disc/files, database operations, etc., This maintains a pool of threads. Schedulers.newThread() – Using this, a new thread will be created each time a task is ...

Block Kit: A clean and consistent UI framework for Slack apps

https://typealias.com/guides/java-optionals-and-kotlin-nulls/