multiple JS variables declaration (google maps)

multiple-js-variables-declaration

var gCoords  = new google.maps.LatLng(-16.698395,-49.26394)
  , gmapData = {
      center:      gCoords,
      zoom:        16,
      mapTypeId:   google.maps.MapTypeId.ROADMAP,
      scrollwheel: false
    }
  , gMap     = new google.maps.Map($('#google-map-localizacao').get(0), gmapData)
  , gMarker  = new google.maps.Marker({
      position: gCoords,
      map:      gMap,
      title:    "Hello World!"
    })
;