# clear

Clear all entries from the RefHashMap.

## Signatures

```ts
export declare const clear: <K, V, E, R>(ref: RefHashMap<K, V, E, R>) => Effect.Effect<HashMap.HashMap<K, V>, E, R>;
```

## Why

Applies clear to the committed hash map value and publishes only the result, preserving its
element order and equality rules.

## Ownership and lifetime

Running clear performs one serialized hash map transition and resolves with its committed value.
It acquires no resource; failures and services remain those of the source ref.