Iterables<E> extension

Provides functions for transforming Iterables to other collections.

Functions that rely on the ordering of elements are non-deterministic if an iterable is unordered, i.e. HashSet.

on

• Iterable<E>

Methods

associate<R>({required Select<E, R> by}) → Map<R, E>

Returns a map that associates values returned by by with elements in this iterable.

distinct({required Select<E, Object?> by}) → Iterable<E>

Returns a lazy iterable with only distinct elements.

indexed() → Iterable<(int, E)>

Returns a lazy iterable with records that contain an iteration index and element.

toMap<K, V>((K, V) create(E element)) → Map<K, V>

Returns a modifiable map using create to produce entries from elements in this iterable.

toUnmodifiableList() → List<E>

Transforms this iterable into an unmodifiable List.

toUnmodifiableMap<K, V>((K, V) create(E element)) → Map<K, V>

Returns an unmodifiable map using create to produce entries from elements in this iterable.

toUnmodifiableSet() → Set<E>

Transforms this iterable into an unmodifiable Set.