effect-io-ai

Package: effect
Module: Effect

Effect.let

Adds a computed plain value to the do notation record.

When to use

Use to add a derived, synchronous value to a do-notation pipeline when it depends on fields already accumulated in the record and does not need to run another Effect.

Details

The new field is added with object spreading. If the name already exists in the record, the computed value replaces it in the returned type.

See

• bind for adding fields produced by effects
• bindTo for naming an existing success value
• Do for starting from an empty accumulated record
• gen for sequencing without accumulating a record

Signature

declare const let: { <N extends string, A extends Record<string, any>, B>(name: N, f: (a: NoInfer<A>) => B): <E, R>(self: Effect<A, E, R>) => Effect<Simplify<Omit<A, N> & Record<N, B>>, E, R>; <A extends Record<string, any>, E, R, B, N extends string>(self: Effect<A, E, R>, name: N, f: (a: NoInfer<A>) => B): Effect<Simplify<Omit<A, N> & Record<N, B>>, E, R>; }

Source

Since v2.0.0