Import
import { filterMapValues } from "@typed/fx/RefRecord";Signatures
export declare const filterMapValues: {
<K extends string, V, B>(f: (value: V, key: K) => Option.Option<B>): <E, R>(ref: RefRecord<K, V, E, R>) => RefSubject.Computed<Record.ReadonlyRecord<K, B>, E, R>;
<K extends string, V, E, R, B>(ref: RefRecord<K, V, E, R>, f: (value: V, key: K) => Option.Option<B>): RefSubject.Computed<Record.ReadonlyRecord<K, B>, E, R>;
};Why
Projects record state with filter map values for both current reads and future pushes, avoiding a second mutable cache of the derived value.
Ownership and lifetime
The filter map values view retains no independent state. An Effect read samples the source once; Fx observation follows later pushes and its observing Scope owns subscription cleanup.
Other public imports
These import paths expose the same declaration. Each page retains its own public name and signature.