code: function init(initState, initParams) {
      if (options.enableLogs || Router.log)
        Router.enableLogs()
  
      if (options.interceptAnchors)
        interceptAnchors(router)
  
      hashSlashString = '#' + options.hashPrefix + '/'
  
      logger.log('Router init')
  
      initStates()
      logStateTree()
  
      initState = (initState !== undefined) ? initState : urlPathQuery()
  
      logger.log('Initializing to state {0}', initState || '""')
      transitionTo(initState, initParams)
  
      listenToURLChanges()
  
      initialized = true
      return router
    }
docs: /*
  Initialize the router.
  The router will immediately initiate a transition to, in order of priority:
  1) The init state passed as an argument
  2) The state captured by the current URL