# utils

**utils** • **Docs**

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[near-sdk-js v2.0.0](https://near-sdk-js.gitbook.io/near-sdk-js/packages) / utils

## utils

### Index

#### Classes

* [TextDecoder](https://near-sdk-js.gitbook.io/near-sdk-js/utils/classes/textdecoder)
* [TextEncoder](https://near-sdk-js.gitbook.io/near-sdk-js/utils/classes/textencoder)

#### Interfaces

* [Env](https://near-sdk-js.gitbook.io/near-sdk-js/utils/interfaces/env)
* [IntoStorageKey](https://near-sdk-js.gitbook.io/near-sdk-js/utils/interfaces/intostoragekey)

#### Type Aliases

* [Mutable](https://near-sdk-js.gitbook.io/near-sdk-js/utils/type-aliases/mutable)
* [NearAmount](https://near-sdk-js.gitbook.io/near-sdk-js/utils/type-aliases/nearamount)
* [PromiseIndex](https://near-sdk-js.gitbook.io/near-sdk-js/utils/type-aliases/promiseindex)
* [Register](https://near-sdk-js.gitbook.io/near-sdk-js/utils/type-aliases/register)

#### Variables

* [ERR\_INCONSISTENT\_STATE](https://near-sdk-js.gitbook.io/near-sdk-js/utils/variables/err_inconsistent_state)
* [ERR\_INDEX\_OUT\_OF\_BOUNDS](https://near-sdk-js.gitbook.io/near-sdk-js/utils/variables/err_index_out_of_bounds)

#### Functions

* [assert](https://near-sdk-js.gitbook.io/near-sdk-js/utils/functions/assert)
* [bytes](https://near-sdk-js.gitbook.io/near-sdk-js/utils/functions/bytes)
* [concat](https://near-sdk-js.gitbook.io/near-sdk-js/utils/functions/concat)
* [decode](https://near-sdk-js.gitbook.io/near-sdk-js/utils/functions/decode)
* [decodeObj2class](https://near-sdk-js.gitbook.io/near-sdk-js/utils/functions/decodeobj2class)
* [deserialize](https://near-sdk-js.gitbook.io/near-sdk-js/utils/functions/deserialize)
* [encode](https://near-sdk-js.gitbook.io/near-sdk-js/utils/functions/encode)
* [getValueWithOptions](https://near-sdk-js.gitbook.io/near-sdk-js/utils/functions/getvaluewithoptions)
* [serialize](https://near-sdk-js.gitbook.io/near-sdk-js/utils/functions/serialize)
* [serializeValueWithOptions](https://near-sdk-js.gitbook.io/near-sdk-js/utils/functions/serializevaluewithoptions)
* [str](https://near-sdk-js.gitbook.io/near-sdk-js/utils/functions/str)
* [validateAccountId](https://near-sdk-js.gitbook.io/near-sdk-js/utils/functions/validateaccountid)