jquery - 无法从 json 文件中提取不同的数组名称

Question

我有多个如下所示的 JSON 文件。

{
  "09800214851900C3": {
    "label": "P7-R1-R16:S2",
    "name": "Geist Upgradable rPDU",
    "state": "normal",
    "order": 0,
    "type": "i03",
    "snmpInstance": 1,
    "lifetimeEnergy": "20155338",
    "outlet": {},
    "alarm": {
      "severity": "",
      "state": "none"
    },
    "layout": {
      "0": [
        "entity/total0",
        "entity/phase0",
        "entity/phase1",
        "entity/phase2"
      ]
    }
  }
}

从中，我想使用 jq 进行如下提取

09800214851900C3 : P7-R1-R16:S2

我面临一个问题，即此数组值 {09800214851900C3} 与所有 JSON 文件不同。所以我需要帮助来提取相同的内容。

Answer 1

基于数据格式，假设您需要首先输入对象及其标签值。
使用Object.keys获取对象键并获取需要的值，无需硬编码。

const data = {
  "09800214851900C3": {
    "label": "P7-R1-R16:S2",
    "name": "Geist Upgradable rPDU",
    "state": "normal",
    "order": 0,
    "type": "i03",
    "snmpInstance": 1,
    "lifetimeEnergy": "20155338",
    "outlet": {},
    "alarm": {
      "severity": "",
      "state": "none"
    },
    "layout": {
      "0": [
        "entity/total0",
        "entity/phase0",
        "entity/phase1",
        "entity/phase2"
      ]
    }
  }
};


const extract = (key = Object.keys(data)[0], `${key} : ${data[key].label}`);

console.log(extract)