# RefRecord.findFirst

Find the first entry satisfying a predicate.

## Signatures

```ts
export declare const findFirst: {
    <K extends string, V>(predicate: (value: V, key: K) => boolean): <E, R>(ref: RefRecord<K, V, E, R>) => RefSubject.Filtered<[
        K,
        V
    ], E, R>;
    <K extends string, V, E, R>(ref: RefRecord<K, V, E, R>, predicate: (value: V, key: K) => boolean): RefSubject.Filtered<[
        K,
        V
    ], E, R>;
};
```

## Why

Models the possibly absent result of find first as Filtered state, so absence stays explicit
while later source versions can make a value available.

## Ownership and lifetime

The find first view retains no independent value. Its Effect read fails with NoSuchElement
while absent; the observing Scope owns and finalizes its Fx subscription.