None<T> class final

Inheritance

• Object
• Option<T>
• None

Available Extensions

• OptionExtension

Constructors

None()

const

Properties

hashCode → int

The hash code for this object.

no setter, inherited

isNone → bool

no setter, inherited

isSome → bool

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

map<TResult extends Object?>({required NoneCallback<TResult> none, required SomeCallback<TResult, T> some}) → TResult

override

mapOrNull<TResult extends Object?>({NullableNoneCallback<TResult>? none, NullableSomeCallback<TResult, T>? some}) → TResult?

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

when<TResult extends Object?>({required ValueNoneCallback<TResult> none, required ValueSomeCallback<TResult, T> some}) → TResult

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited