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Showing posts with the label Reactive Programming

Angular Signals vs. RxJS: Handling Race Conditions and Async State

  The migration from pure RxJS architectures to Angular Signals is rarely a 1:1 translation. While Signals offer a superior developer experience for synchronous state and change detection, they lack the intrinsic time-based operators that made RxJS the standard for asynchronous orchestration. The most common friction point for Senior Engineers is the  Race Condition . In the RxJS world, handling out-of-order HTTP responses for a search typeahead is trivial: just use  switchMap . In a Signals-only world, developers often attempt to trigger API calls inside  effect()  or  computed() , leading to "glitchy" UI states where an old request resolves after a new one, overwriting the correct data. This article explores why this friction exists at the architectural level and provides a production-grade pattern for bridging the gap without sacrificing data integrity. The Architectural Mismatch: Push vs. Pull To understand the race condition, we must analyze the underl...