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left()

left<E, A>(e): Either<E, A>

Creates a Left Either containing an error value.

Type Parameters​

E: E = never​

The error type.

A: A = never​

The success type.

Parameters​

e: E​

The error value.

Returns: Either<E, A>​

A Left Either.

Since​

2.0.0

Left<E>​

Interface

Represents the Left variant of Either containing an error value.

Since​

2.0.0

Type Parameters​

E: E​

The error type.

Properties​

_tag: > readonly *\_tag*: "Left"​

left​

readonly left: E