# dataset.deleteItem()

**Added in:** `@mastra/core@1.4.0`

Deletes a single item from the dataset by ID.

## Usage example

```typescript
import { Mastra } from "@mastra/core";

const mastra = new Mastra({ /* storage config */ });

const dataset = await mastra.datasets.get({ id: "dataset-id" });

await dataset.deleteItem({ itemId: "item-id" });
```

## Parameters

**itemId:** (`string`): ID of the item to delete.

## Returns

**result:** (`Promise<void>`): Resolves when the item is deleted.