> 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/utils/functions/concat.md).

# concat

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

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[near-sdk-js v2.0.0](/near-sdk-js/packages.md) / [utils](/near-sdk-js/utils.md) / concat

## Function: concat()

> **concat**(`array1`, `array2`): `Uint8Array`

Concat two Uint8Array

### Parameters

• **array1**: `Uint8Array`

• **array2**: `Uint8Array`

### Returns

`Uint8Array`

the concatenation of two array

### Defined in

[packages/near-sdk-js/src/utils.ts:45](https://github.com/near/near-sdk-js/blob/b58ac04fc6dff2f1120e9098c0cb059493486598/packages/near-sdk-js/src/utils.ts#L45)