> 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.md).

# functions

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