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我想读一个简单的json数据文件。但我不断收到“Uncaught TypeError:无法读取未定义的”错误的属性'lat'。我不确定为什么。我尝试过无数次尝试改变json文件的结构,但无济于事。任何援助将受到欢迎。读取一个.json文件,并得到一个错误
for (var i = 0; i < 1000; i++) {
var dataCoal = data.coal[i];
// Creating a random position
var latLng = new google.maps.LatLng(dataCoal.lat,dataCoal.lon);
//Uncaught TypeError: Cannot read property 'lat' of undefined
// Creating a marker. Note that we don't add it to the map
var marker = new google.maps.Marker({
position: latLng
});
// Adding the marker to the markers array
markers.push(marker);
}
这是在JSON文件
var data = { "coal": [{"NAME":"Haju Coal","Metals":"Coal","Lat":-0.11667,"Lon":114.85,"Accuracy":"approximate","DevStage":"Preproduction","ActStatus":"Temporarily On Hold","Company":"BHP Billiton Group","InSitu":700,"Metals_ft_style":0,"Accuracy_ft_style":0,"DevStage_ft_style":0,"ActStatus_ft_style":0}]}
有什么特别的原因,您必须在您的循环恒定的上限?如果你console.log(data.coal [0])会发生什么? Lat是属性? –
'for(var i = 0; i
nnnnnn
谢谢你们。实际的JSON文件有多个条目。 1000是我选择的一个随机数。我会改变它看看是否有帮助。这似乎解决了错误。谢谢。 – dilzeem