# Function: typeDefForPrefix()

> **typeDefForPrefix**(`prefix`, `rootType`): `string`

Defined in: [packages/bitbadgesjs-sdk/src/eip712/sanitize.ts:38](https://github.com/BitBadges/bitbadgesjs/blob/master/packages/bitbadgesjs-sdk/src/eip712/sanitize.ts#L38)

## Parameters

### prefix

`string`

### rootType

`string`

## Returns

`string`