effect-io-ai

Package: effect
Module: Option

Option.partitionMap

Splits an Option into two Options based on the result of a mapping function that produces an Either.

Details

This function takes an Option and a mapping function f that converts its value into an Either. It returns a tuple of two Options:

• The first Option (left) contains the value from the Left side of the Either if it exists, otherwise None.
• The second Option (right) contains the value from the Right side of the Either if it exists, otherwise None.

If the input Option is None, both returned Options are None.

This utility is useful for filtering and categorizing the contents of an Option based on a bifurcating computation.

Signature

declare const partitionMap: { <A, B, C>(f: (a: A) => Either<C, B>): (self: Option<A>) => [left: Option<B>, right: Option<C>]; <A, B, C>(self: Option<A>, f: (a: A) => Either<C, B>): [left: Option<B>, right: Option<C>]; }

Source

Since v2.0.0