Subjects and multicasting operators
What’s a Subject?
Share data among multiple subscribers with Subjects
Lab: Manage application loading state with Subjects
Automate the sharing of observables with multicast and share
Deliver a starting value to subscribers with BehaviorSubjects
Lab: Build a basic application store with Subjects
Replay history to new subscribers with ReplaySubjects
Automate multicasting and replaying with shareReplay
Deliver the last value on complete with AsyncSubjects
Intro to Schedulers
What’s a Scheduler?
Execute tasks asynchronously with Async Scheduler
Defer task execution with the Asap Scheduler
Schedule tasks before browser repaint with the Animation Frame Scheduler
Execute tasks on a queue with Queue Scheduler
Testing Observables with Marble Testing
Introduction to Marble testing
Use the test scheduler to convert ASCII diagrams into observables
Configure emitted values within marble diagrams
Confirm subscription points with marble testing
Test hot observables with marbles
Test synchronous operations with marbles
Test asynchronous operations with marbles
Test complex logic with time progression syntax
Test error handling with marbles
Force completion for long running observables with marbles
Testing Observables with Subscribe and Assert Pattern
Introduction to testing with subscribe and assert pattern
Test emitted values as they occur
Test emitted values on completion with toArray
Test asynchronous operators with done callback or test scheduler
Test error notifications with subscrive and assert
RxJS Tips and Tricks
Introduction to Tips & Tricks
Use finalize for side effects on completion
Extract common operator logic into standalone functions
Use combination operators to access state from secondary streams
Automate unsubscribe process with takeUntil
Use filter and partition for conditional logic
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