javascript - 如何使用 lodash 或不使用 lodash 按特定值从嵌套 JSON 创建键数组？

Question

我想创建值为“str”的键数组我有以下嵌套 json:

[
  {
    "Attr": [
      {
        "power": { "p1": "str", "t3": "str" },
        "light": [
          {"test": "str"},
          {"test2": [ { "t4": "str" }]}
        ]
      }
    ]
  },
  {
    "Attr1": [
      {
        "power1": { "p2": "str", "t5": "str" },
        "light1": [
          { "test3": "str" },
          { "test_x": [
              { "t_x": "str" },
              { "t_y": [
                  { "t_y1": "str" }
                ]
              }
            ]
          }
        ]
      }
    ]
  }
]

我想创建键数组，其中键值为“str”，

我想要获得以下数组输出:

["p1", "t3", "test", "p2", "t5", "test3", "t_x", "t_y1"]

如何通过特定值从嵌套 JSON 创建键数组？

Answer 1

恕我直言，您可能正在寻找这样的东西:

var testArr = [{"Attr":[{"power":{"p1":"str","t3":"str"},"light":[{"test":"str"},{"test2":[{"t4":"str"}]}]}]},{"Attr1":[{"power1":{"p2":"str","t5":"str"},"light1":[{"test3":"str"},{"test_x":[{"t_x":"str"},{"t_y":[{"t_y1":"str"}]}]}]}]}];


var strFind = (arr, accumulator = []) => {
  arr.forEach(obj => {
    Object.entries(obj).forEach(([key, value]) => {
      if (value === "str") accumulator.push(key);
      if (Array.isArray(value)) strFind(value, accumulator);
      if (key.includes("power")) {
        Object.entries(value).forEach(([cKey, cValue]) => {
          if (cValue === "str") accumulator.push(cKey);
        })
      }
    });
  })
  return accumulator;
}

console.log(strFind(testArr));