MapView class - dart:collection library - Dart API

Wrapper around a class that implements Map that only exposes Map members.

A simple wrapper that delegates all Map members to the map provided in the constructor.

Base for delegating map implementations like UnmodifiableMapView.

Implements

Map<K, V>

Implemented by

UnmodifiableMapView

Constructors

MapView(Map<K, V> map): const

Properties

isEmpty → bool: read-only
isNotEmpty → bool: read-only
keys → Iterable<K>: read-only
length → int: read-only
values → Iterable<V>: read-only
hashCode → int: The hash code for this object.

read-only, inherited
runtimeType → Type: A representation of the runtime type of the object.

read-only, inherited

Operators

operator [](Object key) → V: Returns the value for the given key or null if key is not in the map.
operator []=(K key, V value) → void: Associates the key with the given value.
operator ==(other) → bool: The equality operator.

inherited

Methods

addAll(Map<K, V> other) → void: Adds all key-value pairs of other to this map.
clear() → void: Removes all pairs from the map.
containsKey(Object key) → bool: Returns true if this map contains the given key.
containsValue(Object value) → bool: Returns true if this map contains the given value.
forEach(void action(K key, V value)) → void: Applies f to each key-value pair of the map.
putIfAbsent(K key, V ifAbsent()) → V: Look up the value of key, or add a new value if it isn't there.
remove(Object key) → V: Removes key and its associated value, if present, from the map.
toString() → String: Returns a string representation of this object.
noSuchMethod(Invocation invocation) → dynamic: Invoked when a non-existent method or property is accessed.

inherited