effect-io-ai

Package: effect
Module: UndefinedOr

UndefinedOr.makeCombinerFailFast

Creates a Combiner for A | undefined that combines values only when both operands are defined.

When to use

Use to lift a Combiner so any undefined operand makes the combined result undefined.

Details

• undefined combined with any value returns undefined
• Any value combined with undefined returns undefined
• a combined with b returns combiner.combine(a, b)

See

• makeReducerFailFast if you have a Reducer and want to lift it to UndefinedOr values.

Signature

declare const makeCombinerFailFast: <A>(combiner: Combiner.Combiner<A>) => Combiner.Combiner<A | undefined>

Source

Since v4.0.0