# `nupp.hash` General-purpose noncryptographic hashing. For message digests use nupp.digest; for error-detection checksums use nupp.checksum. ## Functions ### `fnv1a64` _function_ ```nupp function fnv1a64(value: string | ByteView): string ``` Hashes bytes with FNV-1a over 64 bits. #### Arguments | Name | Type | Description | | --- | --- | --- | | `value` | `string | ByteView` | the bytes to hash | #### Returns | Type | Description | | --- | --- | | `string` | the hash, as sixteen lowercase hexadecimal digits |