Either<L, R> class sealed

Represents a value that can be either of type L or of type R. Usually L is assumed to be of Error type and R of Right type, e.g.:

typedef Result<T> = Either<Exception, T>;

Implementers

• Left
• Right

Available Extensions

• DoEither
• EitherAsync
• EitherFutureExtension

Constructors

Either.left(L value)

const

factory

Either.right(R value)

const

factory

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

combine<R2>(Either<L, R2> other) → Either<L, (R, R2)>

flatMap<T>(Either<L, T> f(R)) → Either<L, T>

fold<T>(T onLeft(L), T onRight(R)) → T

isLeft() → bool

isRight() → bool

map<T>(T f(R)) → Either<L, T>

mapLeft<L1>(L1 f(L)) → Either<L1, R>

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited