> For the complete documentation index, see [llms.txt](https://near-sdk-js.gitbook.io/near-sdk-js/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://near-sdk-js.gitbook.io/near-sdk-js/api/functions/storagehaskey.md).

# storageHasKey

[**api**](/near-sdk-js/api.md) • **Docs**

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[near-sdk-js v2.0.0](/near-sdk-js/packages.md) / [api](/near-sdk-js/api.md) / storageHasKey

## Function: storageHasKey()

> **storageHasKey**(`key`): `boolean`

Checks for the existence of a value under the provided utf-8 string key in NEAR storage.

### Parameters

• **key**: `string`

The utf-8 string key to check for in storage.

### Returns

`boolean`

### Defined in

[packages/near-sdk-js/src/api.ts:319](https://github.com/near/near-sdk-js/blob/b58ac04fc6dff2f1120e9098c0cb059493486598/packages/near-sdk-js/src/api.ts#L319)