Map<K, V>.unmodifiable constructor
- Map other
Creates an unmodifiable hash-based map containing the entries of other
.
The keys must all be instances of K
and the values of V
. The other
map itself can have any type.
The map requires the keys to implement compatible operator==
and hashCode
. The created map iterates keys in a fixed order, preserving the order provided by other
.
The resulting map behaves like the result of Map.from, except that the map returned by this constructor is not modifiable.
Implementation
external factory Map.unmodifiable(Map<dynamic, dynamic> other);
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dart.dev/stable/2.13.0/dart-core/Map/Map.unmodifiable.html