# RefBigDecimal.equals

Check if the current state of a RefBigDecimal equals a BigDecimal.

## Signatures

```ts
export declare const equals: {
    (that: BigDecimal.BigDecimal): <E, R>(ref: RefBigDecimal<E, R>) => RefSubject.Computed<boolean, E, R>;
    <E, R>(ref: RefBigDecimal<E, R>, that: BigDecimal.BigDecimal): RefSubject.Computed<boolean, E, R>;
};
```

## Why

Check if the current state of a RefBigDecimal equals a BigDecimal. The operation remains
attached to the RefSubject's versioned state boundary.

## Ownership and lifetime

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