用其特定的子节点值-节点JS替换JSON节点值

Question

我有这个JSON对象，我想用title.es和description.es子值替换所有的'title‘和'description’对象，比如: item.title = item.title.es，你能帮我找到正确的递归算法吗？我试图使用递归函数，但没有起作用。

[
  {
    "name": "aaa",
    "title": {
      "es": "dfghfdghgfhgfh",
      "en": "hjklhjkljkhljkhlklj"
    },
    "services": [
      {
        "name": "aaa-1",
        "title": {
          "es": "dfgdfgsdfg",
          "en": "dfghfgdhgfhgfhgf"
        },
        "services": [
          {
            "name": "aaa-1-1",
            "title": {
              "es": "dfghgfhfghgfdh",
              "en": "dfghfgdhfgdhgfdh"
            }
            "description": {
              "es": "sdfgfdsgfdg",
              "en": "sertztrezrteztre"
            }
          }
        ]
      },
      {
        "name": "aaa-2",
        "title": {
          "es": "ertzrtez",
          "en": "ertuztzutzuztuzt"
        }
      },
    ]
  },
  {
    "name": "bbb",
    "title": {
      "es": "sdfsdfdsf",
      "en": "sdfsdfdsfdsfdsf"
    },
    "services": [
      {
        "name": "bbb-1",
        "title": {
          "es": "sdfsdfdsfdsf",
          "en": "sdfdsfdsfds"
        },
        "services": [
          {
            "name": "bbb-1-1",
            "title": {
              "es": "werwerewrewr",
              "en": "werwerwerwerew"
            }
          },
          {
            "name": "bbb-1-2",
            "title": {
              "es": "werewrewrwerewr",
              "en": "werewrewrewrwerwerwerwerewr"
            }
          }
        ]
      }
    ]
  }
]

Answer 1

这应该适用于递归函数：

function iter(o) {
  Object.keys(o).forEach((k) => {
    console.log(k);
    if (k === 'title' || k === 'description') {
      console.log(o[k]);
      o[k] = o[k].en;
      return;
    }
    if (o[k] !== null && typeof o[k] === 'object') {
      iter(o[k]);
    }
  });
}
iter(obj);

这是一个修改后的版本：another SO answer :)