如何按属性在嵌套的 object 中搜索 object 并返回 object 与父对象的键和值？

Question

I have a nested object

let data = {
  address: "123 Street, state, country",
  childObject1: {
    foo: ["bar"],
    person: "Hailey"
  },
  relatedCustomers: {
    childObject: {
      foo: ["bar"],
      person: "Hailey2"
    }
  }
};

I want to search object with keys and values by property.

For example

search - my function

data - nested object

search("person", data)

I get the object

{
  childObject: "Hailey2",
  childObject1: "Hailey"
}

I write the code which search all values with person:

https://codesandbox.io/s/suspicious-pascal-qyvjw

but I can't get parent object key and get object as a result:

{
  childObject: "Hailey2",
  childObject1: "Hailey"
}

Answer 1

Please use following code to find the parent key:

let search = (needle, parentKey, haystack, found = []) => {
  Object.keys(haystack).forEach(key => {
    if (key === needle) {
      found.push({
        [key]: haystack[key],
        parentKey
      });
      return found;
    }
    if (typeof haystack[key] === "object") {
      search(needle, key, haystack[key], found);
    }
  });
  return found;
};

console.log(search("person", "data", data));
`;

I have just passed the parent key in the function and saved it if required. I hope this is what you are looking for. Thanks.