nonemptylist library

Classes

NonEmptyList<T>

A list that is guaranteed to have at least one item.

Functions

ap<A, B>(NonEmptyList<B Function(A)> fns) → NonEmptyList<B> Function(NonEmptyList<A>)

Applies each function in the fns NonEmptyList to each item in the List.

append<T>(T item) → NonEmptyList<T> Function(NonEmptyList<T>)

Appends an item to the end of a NonEmptyList.

flatMap<A, B>(NonEmptyList<B> f(A)) → NonEmptyList<B> Function(NonEmptyList<A>)

Maps over the items of the NonEmptyList using function f, then flattens the result.

group<A>(Eq<A> eq) → List<NonEmptyList<A>> Function(NonEmptyList<A>)

Groups consecutive similar items based on the equality eq.

groupBy<A, K>(K keyFunc(A)) → Map<K, NonEmptyList<A>> Function(NonEmptyList<A>)

Groups items by a derived key, as determined by the keyFunc.

head<T>(NonEmptyList<T> list) → T

Returns the first item of the list.

isNonEmpty<T>(List<T> list) → bool

Checks whether the given list is not empty.

map<A, B>(B f(A)) → NonEmptyList<B> Function(NonEmptyList<A>)

Maps over the items of the NonEmptyList using function f.

of<T>(Iterable<T> items) → NonEmptyList<T>

prepend<T>(T item) → NonEmptyList<T> Function(NonEmptyList<T>)

Prepends an item to the beginning of a NonEmptyList.

reverse<A>(NonEmptyList<A> list) → NonEmptyList<A>

Returns a new NonEmptyList with reversed items.

tail<T>(NonEmptyList<T> list) → List<T>

Returns all items from list except the first.

union<A>(Eq<A> eq) → NonEmptyList<A> Function(NonEmptyList<A>) Function(NonEmptyList<A>)

Combines two NonEmptyLists while removing duplicates based on the equality eq.

unique<A>(Eq<A> eq) → NonEmptyList<A> Function(NonEmptyList<A>)

Returns a new NonEmptyList with unique items based on the equality eq.