collection library Collection

Non-aggregating utilities for working with collections.

This includes:

• Bulk operations such as Lists.removeAll.
• Functions for creating a collection from another such as Iterables.toUnmodifiableList.
• Functions for working nullable elements such as NonNullableList.addIfNonNull.
• Move operations that move elements between collections such as MovableList.move.

See sugar.collection.aggregate for aggregation related utilities.

Classes

ListMove<E>

A namespace for functions that move a List's elements to other collections.

SetMove<E>

A namespace for functions that move a Set's elements to other collections.

Extensions

Iterables on Iterable<E>

Provides functions for filtering and transforming Iterables into other collections.

Lists on List<E>

Provides functions for working with Lists.

Maps on Map<K, V>

Provides functions for working with Maps.

MovableList on List<E>

Provides functions for moving a list's elements to other collections.

MovableSet on Set<E>

Provides functions for moving a set's elements to other collections.

NonNullableList on List<E>

Provides functions for working with Lists of null-nullable elements.

NonNullableMap on Map<K, V>

Provides functions for working with Maps of null-nullable entries.

NonNullableSet on Set<E>

Provides functions for working with Sets of null-nullable elements.

Sets on Set<E>

Provides functions for working with Sets.

SplayTreeMaps on SplayTreeMap<K, V>

Provides functions for working SplayTreeMaps.

Functions

disjoint(Iterable<Object?> a, Iterable<Object?> b) → bool

Returns true if a and b have no common elements.

separate<E>(List<E> list, {required List<E> by}) → List<E>

Returns a copy of the list with its elements separated by those in by.