> For the complete documentation index, see [llms.txt](https://archive-docs.klaytn.foundation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://archive-docs.klaytn.foundation/content/dapp/sdk/caver-js/v1.4.1/api-references/caver.klay/misc.md).

# Miscellaneous

```javascript
caver.klay.sha3(data[, callback])
```

Returns the Keccak-256 hash (not the standardized SHA3-256) of the given data.

**Parameters**

| Name     | Type     | Description                                                                                                |
| -------- | -------- | ---------------------------------------------------------------------------------------------------------- |
| data     | String   | The data to convert into a SHA3 hash.                                                                      |
| callback | Function | (optional) Optional callback, returns an error object as the first parameter and the result as the second. |

**Return Value**

`Promise` returns `String` - The SHA3 result of the given data.

**Example**

```javascript
> caver.klay.sha3("0x11223344").then(console.log);
0x36712aa4d0dd2f64a9ae6ac09555133a157c74ddf7c079a70c33e8b4bf70dd73
```