cast<K2, V2> method Null safety

  1. @override
Map<K2, V2> cast<K2, V2>()

Provides a view of this map as having RK keys and RV instances, if necessary.

If this map is already a Map<RK, RV>, it is returned unchanged.

If this set contains only keys of type RK and values of type RV, all read operations will work correctly. If any operation exposes a non-RK key or non-RV value, the operation will throw instead.

Entries added to the map must be valid for both a Map<K, V> and a Map<RK, RV>.


Map<K2, V2> cast<K2, V2>() => _base.cast<K2, V2>();