function hasMap() {
    return document.querySelector(".leaflet-container") !== null
  }

  function initMapbox() {
    addJs('https://api.mapbox.com/mapbox.js/plugins/leaflet-fullscreen/v1.0.1/Leaflet.fullscreen.min.js')
    addCss('https://api.mapbox.com/mapbox.js/plugins/leaflet-fullscreen/v1.0.1/leaflet.fullscreen.css')
  }

  function addFullscreenButton() {
    $(async () => {
      if (document.querySelector("#map") !== null) {
        while (L.Control.Fullscreen === undefined) {
          await sleep(500)
        }
        map.addControl(new L.Control.Fullscreen())
      }
    })
  }

  function isAllPointsSouthOfLat(lat) {
    map.eachLayer(function (layer) {
      if (layer instanceof L.Marker) {
        let latLng = layer.getLatLng()
        if (latLng.lat > lat) {
          return false
        }
      }
    })
  }

  function centerMap() {
    if (map !== undefined && L !== undefined) {
      let coords = mapsCenterByCompetition[getCompetition()]
      if (coords == null) return

      if (isAllPointsSouthOfLat(lat)) {
        map.setView(new L.LatLng(coords.ifSouthern.lat, coords.ifSouthern.lon), 13)
      }
      else {
        map.setView(new L.LatLng(coords.ifEverywhere.lat, coords.ifEverywhere.lon), 12)
      }
    }
  }