code: function replaceParams(newParams) {
      if (!currentState) return
  
      const newUri = router.link(currentState.state.fullName, newParams)
  
      currentState = StateWithParams(currentState.state, newParams, newUri)
  
      history.replaceState(newUri, document.title, newUri)
    }
docs: /*
  Replaces the current state's params in the history with new params.
  The state is NOT exited/re-entered.