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Showing content from https://api.dart.dev/stable/3.8.1/dart-core/MapEntry-class.html below:

MapEntry class - dart:core library

A key/value pair representing an entry in a Map.

The Map interface contains various methods that can inspect or modify the map based on entry objects.

final map = {'1': 'A', '2': 'B'};
map.addEntries([
 MapEntry('3', 'C'),
 MapEntry('4', 'D'),
]);
print(map); // {1: A, 2: B, 3: C, 4: D}

Do not extend or implement the MapEntry class. If the Dart language introduces value types, the MapEntry class will be changed to such a type, and will likely no longer be able to be implemented or extended by classes.

MapEntry.new(K key, V value)

Creates an entry with key and value.

const

factory

hashCode → int

The hash code for this object.

no setterinherited

key → K

The key of the entry.

final

runtimeType → Type

A representation of the runtime type of the object.

no setterinherited

value → V

The value associated to key in a map.

final

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

String representation intended for debugging only.

override

operator ==(Object other) → bool

The equality operator.

inherited

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