javascript - 从函数js内部获取变量值

Question

我正在尝试获取用户当前位置并将这些纬度/经度坐标传递给 map 。该 map 将用作网站背景图像。

我使用这段代码取得了部分成功:

  navigator.geolocation.getCurrentPosition(showPosition);

    function showPosition(position) {
        xss =position.coords.latitude + 
        "," + position.coords.longitude; 


  }
var position = [32.5590985,35.8415147];

现在我希望 xss 的值位于此变量内:

var position = [32.5590985,35.8415147];

基本上我试图从函数中获取值但没有成功。

我应该如何从函数内部获取值？

HTML

<div id="googlemaps"></div>

JS代码

    navigator.geolocation.getCurrentPosition(showPosition);

    function showPosition(position) {
        xss =position.coords.latitude + 
        "," + position.coords.longitude; 


  }
var position = [32.5590985,35.8415147];

function initialize() {

    var myOptions = {
        zoom: 17,
        streetViewControl: false,
        scaleControl: false,
        mapTypeId: google.maps.MapTypeId.ROADMAP
    };

    map = new google.maps.Map(document.getElementById('googlemaps'),
        myOptions);


    latLng = new google.maps.LatLng(position[0], position[1]);

    map.setCenter(latLng);

    marker = new google.maps.Marker({
        position: latLng,
        map: map,
        draggable: false,
        animation: google.maps.Animation.DROP
    });


}
google.maps.event.addDomListener(window, 'load', initialize);

Answer 1

如何在 showPosition 函数内部设置 position 变量的值？

var position;

navigator.geolocation.getCurrentPosition(showPosition);

function showPosition(pos) {
  position = [pos.coords.latitude, pos.coords.longitude];
}