# abs

Get the absolute value of the current state of a RefBigDecimal.

## Signatures

```ts
export declare const abs: <E, R>(ref: RefBigDecimal<E, R>) => RefSubject.Computed<BigDecimal.BigDecimal, E, R>;
```

## Why

Get the absolute value of the current state of a RefBigDecimal. The operation remains attached
to the RefSubject's versioned state boundary.

## Ownership and lifetime

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