[Home](./index.md) > [@empathyco/x-components](./x-components.md) > [UrlMutations](./x-components.urlmutations.md) > [setInitialExtraParams](./x-components.urlmutations.setinitialextraparams.md) ## UrlMutations.setInitialExtraParams property Sets the initial extra params. **Signature:** ```typescript setInitialExtraParams: (extraParams: Dictionary) => void; ```