使用geojson添加标记图层的问题

{
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "properties": {
        "name": "Location A",
        "amenity": "School",
        "popupContent": "This is where the school is located."
      },
      "geometry": {
        "type": "Point",
        "coordinates": [-0.09, 51.505]
      }
    }
  ]
}

var mymap = L.map('mapid').setView([51.505, -0.09], 13);

L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
    maxZoom: 19
}).addTo(mymap);

var geojsonData = {
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "properties": {
        "name": "Location A",
        "amenity": "School",
        "popupContent": "This is where the school is located."
      },
      "geometry": {
        "type": "Point",
        "coordinates": [-0.09, 51.505]
      }
    }
  ]
};

L.geoJSON(geojsonData, {
    onEachFeature: function (feature, layer) {
        if (feature.properties && feature.properties.popupContent) {
            layer.bindPopup(feature.properties.popupContent);
        }
    }
}).addTo(mymap);