Beyond Promises: Async Patterns in JavaScript
summary
Hands-on tour of patterns that replace callbacks with concrete code and results: Node + Socket.IO chat proves callbacks work but read poorly; Promises give composable futures; async/await shortens control flow; RxJS consumes a 200ms stream, takes the first ten values and reduces them to one; channel-style CSP uses generators to produce and consume ten values without blocking; an actor demo with the comedy library sends a message and runs a blocking computation off-thread so the main loop keeps printing dots; Babel is used for newer generator/await syntax.
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chapters (18)
- 0:00Intro
- 2:38Sleep function
- 3:58Progress function
- 6:15Name functions
- 7:52Ik specification
- 9:13Rewrite server example
- 10:59Async
- 11:21Async Example
- 13:02Reactive Async
- 15:11Lazy Async
- 16:57oops
- 18:19Channels
- 19:21Generators
- 20:34Business Implementation
- 24:21Reactive Extensions
- 26:56Terminal Exercise
- 29:28Actor Based Programming
- 39:32Summary
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