Question

我试图在脚本的主要代码中使用getCurrentPosition的值（new_lat，new_lon）。我的一段代码：

var rememberLat = document.getElementById('id_latitude').value;
var rememberLong = document.getElementById('id_longitude').value;

function success(position) {
  var lat = document.getElementById('id_latitude');
  var lon = document.getElementById('id_longitude');
  lat.value = position.coords.latitude;
  lon.value = position.coords.longitude;
  var new_lat = lat.value;
  var new_lon = lon.value;
  return {
    new_lat: new_lat,
    new_lon: new_lon
  }
};

navigator.geolocation.getCurrentPosition(success);
if (!rememberLat || !rememberLong) {
  rememberLat = new_lat;
  rememberLong = new_lon;
}

var tileLayer = new L.TileLayer('http://{s}.tile.openstreetmap.org/{z}/{x}    /{y}.png', {
  attribution: '&copy; <a href="http://www.openstreetmap.org    /copyright">OpenStreetMap</a> Contributors'
});
var map = new L.Map('map', {
  'center': [rememberLat, rememberLong],
  'zoom': 8,
  'layers': [tileLayer]
});

但我可以返回并将它们分配出回调函数。它引发了以下错误：

未捕获的ReferenceError：未定义new_lat

从geolocation.getCurrentPosition函数返回单独的值（纬度，经度）

0 个答案: