JSON要素にアクセスする

Question

JSONの新機能で、結果内で配列にアクセスする方法がわかりません。 3つの別々のJavaScript配列に座標を格納したい。どのように座標にアクセスできますか？ここで

は私のAjaxです：

$.ajax({ 
    url: 'urlhere.php', 
    type: "GET", 
    dataType: "jsonp", 
    success: function (data) { 
    } 
}); 

data.routesは私が近づくが、それは理にかなっている場合、私は、data.routes.route_parts.coordinatesにアクセスするために苦労しています：

{ 
    "request_time": "2016-08-02T20:32:31+01:00", 
    "routes": [ 
    { 
     "duration": "01:46:00", 
     "route_parts": [ 
     { 
      "mode": "foot", 
      "from_point_name": "specified point", 
      "to_point_name": "ABC", 
      "destination": "", 
      "line_name": "", 
      "duration": "00:05:00", 
      "departure_time": "06:12", 
      "arrival_time": "06:17", 
      "coordinates": [ 
      [ 
       -12.72212, 
       53.64521 
      ], 
      [ 
       -12.72212, 
       53.6452 
      ] 
      ] 
     }, 
     { 
      "mode": "bus", 
      "line_name": "113", 
      "duration": "00:28:00", 
      "departure_time": "06:17", 
      "arrival_time": "06:45", 
      "coordinates": [ 
      [ 
       -12.72419, 
       53.64403 
      ], 
      [ 
       -12.72412, 
       53.64405 
      ], 
      [ 
       -12.72412, 
       53.64405 
      ], 
      [ 
       -12.48062, 
       53.70897 
      ], 
      [ 
       -12.48051, 
       53.70881 
      ] 
      ] 
     }, 
     { 
      "mode": "foot", 
      "duration": "00:07:00", 
      "departure_time": "08:53", 
      "arrival_time": "09:00", 
      "coordinates": [ 
      [ 
       -12.48042, 
       53.70883 
      ], 
      [ 
       -12.4805, 
       53.7088 
      ], 
      [ 
       -12.48033, 
       53.70857 
      ] 
      ] 
     } 
     ], 
     "departure_time": "06:56", 
     "departure_date": "2016-08-03", 
     "arrival_time": "09:00", 
     "arrival_date": "2016-08-03" 
    } 
    ] 
} 

Answer 1

使用インデックスをデータにアクセスします。

data.routes.route_parts[0].coordinates