Javascript 如何使用lodash从json返回childobject？

假设我有以下json文件，并且我希望返回“existing.primaryBundle.products”数组，最好使用lodash：

{
  "existing": {
    "hasPlatinum": false,
    "primaryBundle": {
      "id": "2008",
      "name": "TV - Entertainment, Sport",
      "products": [
        {
          "name": "Entertainment",
          "id": "100",
          "price": 2600,
          "gifted": false
        },
        {
          "name": "Sport",
          "id": "107",
          "price": 2500,
          "gifted": false,
          "swappableProducts": [
            {
              "name": "Movies",
              "id": "105",
              "price": 2000,
              "gifted": false
            }
          ]
        }
      ]
    },
    "extrasBundle": {
      "id": "131",
      "name": "Optional Extras - MUTV (Sports), LFCTV (Sports), Chelsea TV (Sports)",
      "products": [
        {
          "name": "MUTV (Sports)",
          "id": "665",
          "price": 0,
          "gifted": false
        },
        {
          "name": "LFCTV (Sports)",
          "id": "666",
          "price": 0,
          "gifted": false
        },
        {
          "name": "Chelsea TV (Sports)",
          "id": "667",
          "price": 0,
          "gifted": false
        }
      ]
    }

  }
}

我曾尝试过lodash，并使用以下语句：

list2=u2;.pick（现有，'primaryBundle.products'）

---

但这将返回一个错误，而不是想要的结果。如何选择此products数组？

它返回错误的主要原因是

现有的

不是一个全局范围的对象，您必须将对象分配给某个变量，如

const obj={…}

，然后将参数作为

obj.existing

传递给

\u pick

方法，但是我看不出在这里使用lodash的理由，您可以直接引用该对象的路径。

您可以使用

.get（nameOfObject，'existing.primaryBundle.products'）

当然您需要像我下面使用

sampleObject那样命名您的对象

你也可以去看看洛达斯

假设您已经解析了JSON字符串以获得一个对象
obj
，您可以说
list2=obj.existing.primaryBundle.products
。不需要洛达斯。
const sampleObject = {
  "existing": {
    "hasPlatinum": false,
    "primaryBundle": {
      "id": "2008",
      "name": "TV - Entertainment, Sport",
      "products": [{
        "name": "Entertainment",
        "id": "100",
        "price": 2600,
        "gifted": false
      }, {
        "name": "Sport",
        "id": "107",
        "price": 2500,
        "gifted": false,
        "swappableProducts": [{
          "name": "Movies",
          "id": "105",
          "price": 2000,
          "gifted": false
        }]
      }]
    },
    "extrasBundle": {
      "id": "131",
      "name": "Optional Extras - MUTV (Sports), LFCTV (Sports), Chelsea TV (Sports)",
      "products": [{
        "name": "MUTV (Sports)",
        "id": "665",
        "price": 0,
        "gifted": false
      }, {
        "name": "LFCTV (Sports)",
        "id": "666",
        "price": 0,
        "gifted": false
      }, {
        "name": "Chelsea TV (Sports)",
        "id": "667",
        "price": 0,
        "gifted": false
      }]
    }
  }
}

console.log(_.get(sampleObject, 'existing.primaryBundle.products'));