# Functions

<a id="sharedprefixlength"></a>

##  sharedPrefixLength

▸ **sharedPrefixLength**(first: *`Uint8Array`*, second: *`Uint8Array`*): `number`

*Defined in [util/sharedPrefixLength.ts:5](https://github.com/polkadot-js/common/blob/5585a16/packages/trie-codec/src/util/sharedPrefixLength.ts#L5)*

**Parameters:**

| Name | Type |
| ------ | ------ |
| first | `Uint8Array` |
| second | `Uint8Array` |

**Returns:** `number`

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