Lessons
Kotlin · Expert
Kotlin · Expert. Ten lessons. Open-book quizzes. Lesson 1 free.
10 lessons · The Host · Lesson 1 free
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Lesson 1 · On the house
Channels
Channel, send/receive, produce; rendezvous vs buffered.
Lesson 2
StateFlow and SharedFlow
Hot streams; stateIn/shareIn; conflation vs replay.
Lesson 3
Mutex
Mutex.lock / withLock for shared mutable state in coroutines.
Lesson 4
Flow errors and cancellation
catch, onCompletion, retry; do not swallow CancellationException.
Lesson 5
Value classes
@JvmInline value class; identity/boxing; typed IDs.
Lesson 6
DslMarker
@DslMarker blocks implicit receivers across nested DSL scopes.
Lesson 7
Reflection sketch
KClass, memberProperties / call; JVM reflection cost.
Lesson 8
expect and actual
Kotlin Multiplatform expect/actual declarations.
Lesson 9
Sequences deep
sequence { yield }; lazy vs List; when Sequence wins.
Lesson 10
Expert capstone
Value class id + Channel produce/consume + StateFlow in runBlocking.
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