putAllAndUpdateExistingMapped<TMapped> abstract method
Future<void>
putAllAndUpdateExistingMapped<TMapped>(
- Map<
TKey, TMapped> newValues, - TVal mutateExisting(
- TKey key,
- TVal? mutateMe,
- TMapped newValue
Same as putAllAndUpdateExisting but mutateExisting
can receive a null existing value
Implementation
Future<void> putAllAndUpdateExistingMapped<TMapped>(
Map<TKey, TMapped> newValues,
TVal Function(TKey key, TVal? mutateMe, TMapped newValue) mutateExisting,
);