# RefRecord.size

Get the current size of the Record.

## Signatures

```ts
export declare const size: <K extends string, V, E, R>(ref: RefRecord<K, V, E, R>) => RefSubject.Computed<number, E, R>;
```

## Why

Makes size a live projection of the record; consumers can sample it now or observe it without
copying the source state.

## Ownership and lifetime

The size view retains no independent state. An Effect read samples the source once; Fx
observation follows later pushes and its observing Scope owns subscription cleanup.