NullableIterableExtension<T> extension

Methods

allNonNull(bool predicate(T element)) → bool

Available on Iterable<T?>?, provided by the NullableIterableExtension extension

Returns true if all non-null elements satisfy predicate.

anyNonNull(bool predicate(T element)) → bool

Available on Iterable<T?>?, provided by the NullableIterableExtension extension

Returns true if any non-null element satisfies predicate.

differenceFrom(Iterable<T> other) → Iterable<T>

Available on Iterable<T?>?, provided by the NullableIterableExtension extension

Returns a set of elements that are unique to this iterable compared to other.

distinct() → Iterable<T?>

Available on Iterable<T?>?, provided by the NullableIterableExtension extension

Returns a new iterable with duplicates removed, preserving nulls.

firstNonNull() → T?

Available on Iterable<T?>?, provided by the NullableIterableExtension extension

Returns the first non-null element or null if none exists. final numbers = null, null, 5, 10, null; final emptyList = null;

forEachNonNull(void action(T element)) → void

Available on Iterable<T?>?, provided by the NullableIterableExtension extension

Applies action to each non-null element.

groupNonNullBy<K>(K key(T element)) → Map<K, List<T>>

Available on Iterable<T?>?, provided by the NullableIterableExtension extension

Groups non-null elements by the given key function.

intersectWith(Iterable<T> other) → Iterable<T>

Available on Iterable<T?>?, provided by the NullableIterableExtension extension

Returns a set of elements that are common between this iterable and other.

joinNonNull([String separator = '']) → String

Available on Iterable<T?>?, provided by the NullableIterableExtension extension

Joins the non-null elements into a string with the given separator.

mapNonNull<R>(R mapper(T element)) → Iterable<R>

Available on Iterable<T?>?, provided by the NullableIterableExtension extension

Maps each non-null element using mapper.

maxBy<K extends Comparable<K>>(K selector(T element)) → T?

Available on Iterable<T?>?, provided by the NullableIterableExtension extension

Finds the maximum value based on a selector or returns null if empty or all null.

minBy<K extends Comparable<K>>(K selector(T element)) → T?

Available on Iterable<T?>?, provided by the NullableIterableExtension extension

Finds the minimum value based on a selector or returns null if empty or all null.

reduceOrNull(T combine(T value, T element)) → T?

Available on Iterable<T?>?, provided by the NullableIterableExtension extension

Reduces non-null elements to a single value or returns null if empty.

validate() → Iterable<T>

Available on Iterable<T?>?, provided by the NullableIterableExtension extension

Returns an empty iterable if this is null.

whereNonNull(bool predicate(T element)) → Iterable<T>

Available on Iterable<T?>?, provided by the NullableIterableExtension extension

Filters the elements based on predicate, ignoring nulls.