# isInteger

Check if the current state of a RefBigDecimal is an integer.

## Signatures

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

## Why

Check if the current state of a RefBigDecimal is an integer. The operation remains attached to
the RefSubject's versioned state boundary.

## Ownership and lifetime

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