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pipelined

isErr

isErr<E, A>(outcome): outcome is Err<E>

Defined in: Core/Op.ts:541

Returns true if the Outcome is Err.

Type Parameters

Section titled “Type Parameters”

E

Section titled “E”

E

A

Section titled “A”

A

Parameters

Section titled “Parameters”

outcome

Section titled “outcome”

Outcome<E, A>

Returns

Section titled “Returns”

outcome is Err<E>

Example

Section titled “Example”
if (Op.isErr(outcome)) logger.error(outcome.error);