Javascript循环-第二个变量不显示
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这是代码：
<script type=\"text/javascript\">
var offender_locations = [
[\"10010\", \"xxxxx\", 3],
[\"10001\", \"xxxxx\", 2],
[\"10002\", \"zzzzz\", 1]
];
for (i = 0; i < offender_locations.length; i++) {
var address = offender_locations[i][0];
var icon_img = offender_locations[i][1];
}
</script>
<script type=\"text/javascript\">
var offender_locations = [
[\"10010\", \"offender_icon.png\", 3],
[\"10001\", \"offender_icon.png\", 2],
[\"10002\", \"visitor_icon.png\", 1]
];
var myOptions = {
zoom: 10,
center: latlng,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById(\"map\"), myOptions);
var latlng = new google.maps.LatLng(0, 0);
for (i = 0; i < offender_locations.length; i++) {
var infowindow = new google.maps.InfoWindow();
var geocoder_map = new google.maps.Geocoder();
var address = offender_locations[i][0];
var icon_img = offender_locations[i][1];
geocoder_map.geocode({
\'address\': address
}, function (results, status) {
if (status == google.maps.GeocoderStatus.OK) {
map.setCenter(results[0].geometry.location);
var marker = new google.maps.Marker({
map: map,
position: map.getCenter(),
icon: icon_img
});
google.maps.event.addListener(marker, \'click\', (function (marker, i) {
return function () {
infowindow.setContent(offender_locations[i][0]);
infowindow.open(map, marker);
}
})(marker, i));
} else {
alert(\"The requested offender is not mappable !\")
};
});
}
</script>
没有找到相关结果
已邀请:
1 个回复
良阑纠苫
的时间（在传递给的回调中）时，外部for循环已完成，具有上一次迭代的值。它适用于，因为它是在循环内而不是稍后进行求值的。 您必须“捕获”的当前值，并且可以使用立即函数来实现：for (i = 0; i < offender_locations.length; i++) { var infowindow = new google.maps.InfoWindow(), geocoder_map = new google.maps.Geocoder(), address = offender_locations[i][0], icon_img = offender_locations[i][1]; (function(addr, img) { // <-- immediate function call geocoder_map.geocode({\'address\': addr}, function(results, status) { if (status == google.maps.GeocoderStatus.OK) { map.setCenter(results[0].geometry.location); var marker = new google.maps.Marker({ map: map, position: map.getCenter(), icon: img }); google.maps.event.addListener(marker, \'click\', function() { infowindow.setContent(addr); infowindow.open(map, marker); }); } else { alert(\"The requested offender is not mappable !\"); } }); }(address, icon_img)); // <-- immediate function call }