如何從Google Maps API返回的結果數組中提取城市名稱？

<script type="text/javascript"> 
var GOOGLE_API_KEY = "mykey"; 
var lat, lng; 
var geocoder; 
var geoCodingUrl; 
if (navigator.geolocation) { 
    navigator.geolocation.getCurrentPosition(successFunction, errorFunction); 
} 
function successFunction(position) { 
    var lat = position.coords.latitude; 
    var lng = position.coords.longitude; 
    var geoCodingUrl = "https://maps.googleapis.com/maps/api/geocode/json?latlng=" + lat + "," + lng + "&key=" + GOOGLE_API_KEY; 
console.log(geoCodingUrl); 

    var address = result.address_components[4].longname; 
    if (address == "Mumbai, India") { 
    window.location = "url"; 
    } 
    if(address == "Bangalore, India"){ 
    window.location = "url"; 
    } 
    if(address == "Jaipur, India") { 
    window.location = "url"; 
    } 
    else{ 
    window.location = "url"; 
    } 
    } 

function errorFunction() { 
alert ("Geocoder failed"); 
} 

</script>

根據Google Maps API文檔，geoCodingUrl應該返回一個JSON數組。如何從該陣列中檢索城市名稱？控制檯給出了一個錯誤，說找不到結果變量，我該如何引用返回的數組？如何從Google Maps API返回的結果數組中提取城市名稱？

來源

2016-03-02 Abhijoy Nandi

試結果[0] .address_components [4] .longname ....但在此之前，其中具有u限定結果變量？ – Vijaykrish93

我嘗試過，得到了同樣的錯誤。 –

我沒有定義它，顯然，結果是由url返回的數組的名稱。 –

假設烏爾使用jquery這裏是代碼

function successFunction(position) { 
var lat = position.coords.latitude; 
var lng = position.coords.longitude; 
var geoCodingUrl = "https://maps.googleapis.com/maps/api/geocode/json? latlng=" + lat + "," + lng + "&key=" + GOOGLE_API_KEY; 
$.ajax({ 
    url:geoCodingUrl, 
    method:"GET", 
    success:function(res){ 
    var result=res.results; 
    var address = result[0].address_components[4].longname; 
    if (address == "Mumbai, India") { 
     window.location = "url"; 
    } 
    if(address == "Bangalore, India"){ 
     window.location = "url"; 
    } 
    if(address == "Jaipur, India") { 
    window.location = "url"; 
    } 
    else{ 
    window.location = "url"; 
    } 
    } 
}) 
}

來源

2016-03-02 11:13:59 Vijaykrish93

如何從Google Maps API返回的結果數組中提取城市名稱？

回答

相關問題