Question

我试图以下列方式更新现有的json对象，而不使用普通java脚本中的任何函数。这是在一次采访中提出的。

附件是我的输入文件：

{

  "height_c": 534,
  "width_c": "800",
  "height_h": 1067,
  "width_h": "1600",
  "height_k": 1366,
  "width_k": "2048",
  "height_l": "683",
  "width_l": "1024",
  "height_m": "333",
  "width_m": "500",
  "height_n": 213,
  "width_n": "320",
  "height_q": "150",
  "width_q": "150",
  "height_s": "160",
  "width_s": "240",
  "height_sq": 75,
  "width_sq": 75,
  "height_t": "67",
  "width_t": "100",
  "height_z": "427",
  "width_z": "640"

}

附件是我的预期文件：

{
   "sizes": {
    "c": {
    "width": 800,
    "height": 534
    },
    "h": {
    "width": 1600,
    "height": 1067
    },
    "k": {
    "width": 2048,
    "height": 1366
    },
    "l": {
    "width": 1024,
    "height": 683
    },
    "m": {
    "width": 500,
    "height": 333
    },
    "n": {
    "width": 320,
    "height": 213
    },
    "q": {
    "width": 150,
    "height": 150
    },
    "s": {
    "width": 240,
    "height": 160
    },
    "q": {
    "width": 75,
    "height": 75
    },
    "t": {
    "width": 100,
    "height": 67
    },
    "z": {
    "width": 640,
    "height": 427
    }
}
}

任何帮助都将不胜感激。我正在寻找一个起点。

Answer 1

＆＃13;

var input = {
  "height_c": 534,
  "width_c": "800",
  "height_h": 1067,
  "width_h": "1600",
  "height_k": 1366,
  "width_k": "2048",
  "height_l": "683",
  "width_l": "1024",
  "height_m": "333",
  "width_m": "500",
  "height_n": 213,
  "width_n": "320",
  "height_q": "150",
  "width_q": "150",
  "height_s": "160",
  "width_s": "240",
  "height_sq": 75,
  "width_sq": 75,
  "height_t": "67",
  "width_t": "100",
  "height_z": "427",
  "width_z": "640"
}

var output = {}

for (var key in input) {
  var split = key.split('_')
  if (!output[split[1]]) output[split[1]] = {};
  output[split[1]][split[0]] = input[key];
}

document.body.appendChild(document.createTextNode(JSON.stringify({sizes: output}, null, 4)));

＆＃13;

body { white-space: pre; font-family: monospace; }

＆＃13;

修改JSON对象中的值并将其放入另一个JSON对象中

1 个答案: