[Verse 1] Services hold the truth, injectable and lean Singleton patterns keep the data clean Observable streams from RxJS flow Subjects broadcast changes that components need to know [Pre-Chorus] BehaviorSubject remembers the last ReplaySubject holds the past AsyncSubject waits until complete State synchronization made sweet [Chorus] Store, Select, Dispatch, Reduce NgRx patterns we can use Immutable updates, pure functions reign Side effects in epics, keeping logic sane Actions fly, reducers slice State trees organized precise [Verse 2] Component architecture breaks apart Presentational dumb, containers smart OnPush strategy optimizes renders fast Change detection cycles built to last [Pre-Chorus] Selectors memoize expensive calls Facades hide complexity behind walls Entity adapters normalize the store DevTools time-travel through state explore [Chorus] Store, Select, Dispatch, Reduce NgRx patterns we can use Immutable updates, pure functions reign Side effects in epics, keeping logic sane Actions fly, reducers slice State trees organized precise [Bridge] Marble diagrams map the async dance Operators transform with reactive stance Guards protect routes with state-aware checks Feature modules scope their state effects [Final Chorus] Store, Select, Dispatch, Reduce NgRx patterns we can use Immutable updates, pure functions reign Side effects in epics, keeping logic sane Actions fly, reducers slice Angular state done right [Outro] From chaos to order, state controlled Architecture patterns worth their gold
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