Empty<T> class

Inheritance

• Object
• Optional<T>
• Empty

Available extensions

• OptionalLists
• OptionalNums
• OptionalStrings

Constructors

Empty()

const

Properties

hashCode → int

The hash code for this object.

no setter, inherited

isBlank → bool

Available on OptionalString, provided by the OptionalStrings extension

no setter

isNotBlank → bool

Available on OptionalString, provided by the OptionalStrings extension

no setter

isPresent → bool

no setter, override

length → int

Available on OptionalList<T>, provided by the OptionalLists extension

no setter

length → int

Available on OptionalString, provided by the OptionalStrings extension

no setter

props → List<Object>

The list of properties that will be used to determine whether two instances are equal.

no setter

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

stringify → bool?

If set to true, the toString method will be overridden to output this instance's props.

no setter, inherited

Methods

asEmpty() → Empty<T>

inherited

asPresent() → Present<T>

inherited

conditionally<N>(bool _(Optional<T>), Optional<N> __(Optional<T>)) → Empty<N>

override

equals(T value) → bool

override

filter(Predicate<T> _) → Empty<T>

override

flatMap<N>(Optional<N> _(T)) → Empty<N>

override

fold<R>(R initial, R reducer(R, T)) → Optional<R>

Available on OptionalList<T>, provided by the OptionalLists extension

ifEmpty(void action()) → Empty<T>

override

ifPresent(void _(T)) → Empty<T>

override

join([String separator = ' ']) → OptionalString

Available on OptionalList<T>, provided by the OptionalLists extension

map<N>(N _(T)) → Empty<N>

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

optionally<X, N>(Optional<X> optional, Optional<N> optionalTuple(Optional<T>, Optional<X>)) → Optional<N>

inherited

orElse(T supplier()) → T

override

orElseGet(T value) → T

override

orThrow(Exception exception) → T

override

reduce(T reducer(T, T)) → Optional<T>

Available on OptionalList<T>, provided by the OptionalLists extension

run(void action(Empty<T>)) → Empty<T>

override

split(Pattern pattern) → OptionalList<String>

Available on OptionalString, provided by the OptionalStrings extension

toList() → List<T>

inherited

toSet() → Set<T>

inherited

toString() → String

A string representation of this object.

trim() → OptionalString

Available on OptionalString, provided by the OptionalStrings extension

Operators

operator *(OptionalNum that) → OptionalNum

Available on OptionalNum, provided by the OptionalNums extension

operator *(int times) → OptionalString

Available on OptionalString, provided by the OptionalStrings extension

operator +(OptionalList<T> that) → OptionalList<T>

Available on OptionalList<T>, provided by the OptionalLists extension

operator +(OptionalNum that) → OptionalNum

Available on OptionalNum, provided by the OptionalNums extension

operator +(OptionalString that) → OptionalString

Available on OptionalString, provided by the OptionalStrings extension

operator -(OptionalNum that) → OptionalNum

Available on OptionalNum, provided by the OptionalNums extension

operator /(OptionalNum that) → OptionalNum

Available on OptionalNum, provided by the OptionalNums extension

operator ==(Object other) → bool

The equality operator.

inherited

operator ~/(OptionalNum that) → OptionalNum

Available on OptionalNum, provided by the OptionalNums extension