MapBuilder<K, V> class Null safety

The Built Collection builder for BuiltMap.

It implements the mutating part of the Map interface.

See the Built Collection library documentation for the general properties of Built Collections.

Constructors

MapBuilder([dynamic map = const {}]): Instantiates with elements from a Map or BuiltMap.
factory

hashCode → int: The hash code for this object. [...]
read-only, inherited
isEmpty → bool: As Map.isEmpty.
read-only
isNotEmpty → bool: As Map.isNotEmpty.
read-only
length → int: As Map.length.
read-only
runtimeType → Type: A representation of the runtime type of the object.
read-only, inherited

addAll(Map<K, V> other) → void: As Map.addAll.
addEntries(Iterable<MapEntry<K, V>> newEntries) → void: As Map.addEntries.
addIterable<T>(Iterable<T> iterable, {K key(T)?, V value(T)?}) → void: As Map.fromIterable but adds. [...]
build() → BuiltMap<K, V>: Converts to a BuiltMap. [...]
clear() → void: As Map.clear.
noSuchMethod(Invocation invocation) → dynamic: Invoked when a non-existent method or property is accessed. [...]
inherited
putIfAbsent(K key, V ifAbsent()) → V: As Map.putIfAbsent.
remove(Object? key) → V?: As Map.remove.
removeWhere(bool predicate(K, V)) → void: As Map.removeWhere.
replace(Object map) → void: Replaces all elements with elements from a Map or BuiltMap.
toString() → String: A string representation of this object. [...]
inherited
update(dynamic updates(MapBuilder<K, V> builder)) → void: Applies a function to this.
updateAllValues(V update(K, V)) → void: As Map.updateAll.
updateValue(K key, V update(V), {V ifAbsent()?}) → V: As Map.update.
withBase(_MapFactory<K, V> base) → void: Uses base as the collection type for all maps created by this builder. [...]
withDefaultBase() → void: As withBase, but sets base back to the default value, which instantiates Map<K, V>.