在javascript中搜索json对象的递归函数

function searchJSON(obj, key) {
  var results = [];

  function search(obj, key) {
    for (var prop in obj) {
      if (obj.hasOwnProperty(prop)) {
        if (prop === key) {
          results.push(obj[prop]);
        } else if (typeof obj[prop] === 'object') {
          search(obj[prop], key);
        }
      }
    }
  }

  search(obj, key);
  return results;
}

var json = {
  "name": "John",
  "age": 30,
  "address": {
    "street": "123 Main St",
    "city": "New York"
  },
  "friends": [
    {
      "name": "Jane",
      "age": 28
    },
    {
      "name": "Bob",
      "age": 32
    }
  ]
};

var results = searchJSON(json, "name");
console.log(results); // 输出：["John", "Jane", "Bob"]