child
fun <ParentState, ParentAction : Any, ChildState> child(reducer: Reducer<ChildState, ParentAction>, mapToChildState: (parent: ParentState) -> ChildState): ChildReducer<ParentState, ParentAction, ChildState>
Transforms the Reducer to a ChildReducer for combineReducers. The mapToChildState transforms the ParentState to the ChildState.
fun <ParentState, ParentAction : Any, ChildState, ChildAction : Any> child(reducer: Reducer<ChildState, ChildAction>, mapToChildAction: (parent: ParentAction) -> ChildAction?, mapToChildState: (parent: ParentState) -> ChildState): ChildReducer<ParentState, ParentAction, ChildState>
Transforms the Reducer to a ChildReducer for combineReducers. The mapToChildAction transforms the ParentAction to the ChildAction, and the mapToChildState transforms the ParentState to the ChildState. If the mapToChildAction returns null, the reducer will not be called.