JSON数组解析不显示输出

Question

[  
   {  
      "MAP_COORDINATES":
          "[[32.732695279933104,74.86289978027344],
            [32.72749665793957,74.85431671142578],
            [32.72143121579454,74.85963821411133],
            [32.72200889472774,74.88521575927734]]"
   }
]

如何解析这个数组。请帮忙

Answer 1

将代码从JSON.parse(polyLocation).forEach(function(v) { ...更改为JSON.parse(polyLocation[0].MAP_COORDINATES).forEach(function(v) { ...可以解决此问题。检查Fiddle。

Answer 2

Use 

var cordData = JSON.parse(polyLocation);
cordData =cordData['MAP_COORDINATES'];

cordData.forEach(function(v) {

     alert(v[0]);
     path.push(new google.maps.LatLng(v[0],v[1]));
     alert("coords main ="+path[0]);


    })

Answer 3

试试这个

var a ='[{"MAP_COORDINATES":"[[32.732695279933104,74.86289978027344],[32.72749665793957,74.85431671142578],[32.72143121579454,74.85963821411133],[32.72200889472774,74.88521575927734]]"}]' ;
var b =JSON.parse(a);
var data = JSON.parse(b[0].MAP_COORDINATES);
data.forEach(function(v) {
          console.log(v);
 })

Answer 4

您需要更改您的json语法..

c

应用[0] .MAP_COORDINATES [0]

“32.732695279933104,74.86289978027344”