将具有键值的对象转换为具有所述键名和值的对象数组

function convertObjectToArray(obj) {
  var result = [];
  
  for (var key in obj) {
    if (obj.hasOwnProperty(key)) {
      var newObj = {};
      newObj.key = key;
      newObj.value = obj[key];
      result.push(newObj);
    }
  }
  
  return result;
}

// 示例用法
var obj = { name: 'John', age: 30, city: 'New York' };
var arr = convertObjectToArray(obj);
console.log(arr);

[
  { key: 'name', value: 'John' },
  { key: 'age', value: 30 },
  { key: 'city', value: 'New York' }
]