从嵌套 JSON 节点 JS 中提取数据

Question

我需要提取距离和持续时间的 text 值，但遗憾的是我无法遍历 JSON。关于如何以最简单的方式遍历 Node JS 中的节点有什么想法吗？

     {
   "destination_addresses" : [ "Chennai, Tamil Nadu, India" ],
   "origin_addresses" : [ "Kolkata, West Bengal, India" ],
   "rows" : [
      {
         "elements" : [
            {
               "distance" : {
                  "text" : "1,671 km",
                  "value" : 1671269
               },
               "duration" : {
                  "text" : "1 day 5 hours",
                  "value" : 104370
               },
               "status" : "OK"
            }
         ]
      }
   ],
   "status" : "OK"
}

Answer 1

假设您的 JSON 是名为 data

的对象

var data =     {
   "destination_addresses" : [ "Chennai, Tamil Nadu, India" ],
   "origin_addresses" : [ "Kolkata, West Bengal, India" ],
   "rows" : [
      {
         "elements" : [
            {
               "distance" : {
                  "text" : "1,671 km",
                  "value" : 1671269
               },
               "duration" : {
                  "text" : "1 day 5 hours",
                  "value" : 104370
               },
               "status" : "OK"
            }
         ]
      }
   ],
   "status" : "OK"
}

您将像这样访问距离元素

data.rows[0].elements[0].distance

从嵌套 JSON 节点 JS 中提取数据

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