# Additional JS

### Theme Options > Custom Code > Custom Javascript

You should turn on to enable custom javascript, then add code you want to use

![](https://3192842155-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FCGEvkIGZQql1dvbXwu25%2Fuploads%2Fo0FNmuvSo8HhnwWvaFjF%2Fadditional%20js.png?alt=media\&token=ab9f49e5-b306-4f5a-998e-d564841d0b8b)