Javascript-在現有JSON字符串中操作數組結構

Question

我有一個簡單的json，要在其中操作數組結構和數據，如下所示，有人可以建議如何使用javascript或xpaths進行操作。

當前的json：-

{
  "pimage": [
    {
      "limage": "http://images.bestbuy.com/BestBuy_US/images/products/7306/7306011_sb.jpg",
      "timage": "http://images.bestbuy.com/BestBuy_US/images/products/7306/7306011_s.gif",
      "mimage": "http://images.bestbuy.com/BestBuy_US/images/products/7306/7306011fp.gif",
      "lfimage": "http://img.bbystatic.com/BestBuy_US/images/products/7306/7306011_sa.jpg"
    }
  ]
}

預期：-在limage鍵下面變得通用，並且當前json的url值保持原樣。

{
  "pimage": [
    {
      "limage": "http://images.bestbuy.com/BestBuy_US/images/products/7306/7306011_sb.jpg"
    },
    {
      "limage": "http://images.bestbuy.com/BestBuy_US/images/products/7306/7306011_s.gif"
    },
    {
      "limage": "http://images.bestbuy.com/BestBuy_US/images/products/7306/7306011_s.gif"
    },
    {
      "limage": "http://images.bestbuy.com/BestBuy_US/images/products/7306/7306011_s.gif"
    }
  ]
}

Answer 1

問題似乎還不清楚，但是這段代碼會將您的對象變成您想要的形式：

var myObj = {
  "pimage": [
    {
      "limage": "http://images.bestbuy.com/BestBuy_US/images/products/7306/7306011_sb.jpg",
      "timage": "http://images.bestbuy.com/BestBuy_US/images/products/7306/7306011_s.gif",
      "mimage": "http://images.bestbuy.com/BestBuy_US/images/products/7306/7306011fp.gif",
      "lfimage": "http://img.bbystatic.com/BestBuy_US/images/products/7306/7306011_sa.jpg"
    }
  ]
}
var myFunc = function(obj) { 
  var keys = Object.keys(obj.pimage[0]);
  var newObj = {"pimage":[]};
  keys.forEach(function(k) {
    var newImg = {};
    newImg['limage'] = obj.pimage[0][k];
    newObj.pimage.push(newImg);
  });
  return newObj;
}

console.log(myFunc(myObj));

有了更多信息，就可以更強大地構造myFunc（）函數。

Answer 2

嘗試這個 ：

function Parse(ur_obj) {
   var iterate = ur_obj.pimage[0];
   var result = [];
   for(var x in iterate) {
      result.push({x:iterate[x]});
   }
   ur_obj.pimage = result;
   return ur_obj;
}

Answer 3

該解決方案將每個鍵/值對映射到單獨的對象。

 var obj = { "pimage": [{ "limage": "http://images.bestbuy.com/BestBuy_US/images/products/7306/7306011_sb.jpg", "timage": "http://images.bestbuy.com/BestBuy_US/images/products/7306/7306011_s.gif", "mimage": "http://images.bestbuy.com/BestBuy_US/images/products/7306/7306011fp.gif", "lfimage": "http://img.bbystatic.com/BestBuy_US/images/products/7306/7306011_sa.jpg" }] }; obj.pimage = Object.keys(obj.pimage[0]).map(function (k) { var o = {}; o[k] = obj.pimage[0][k]; return o; }); document.write('<pre>' + JSON.stringify(obj, 0, 4) + '</pre>');