如何在jquery中创建二维关联数组？

// 创建一个二维关联数组
var myArray = {
  key1: {
    subkey1: 'value1',
    subkey2: 'value2',
    subkey3: 'value3'
  },
  key2: {
    subkey1: 'value4',
    subkey2: 'value5',
    subkey3: 'value6'
  },
  key3: {
    subkey1: 'value7',
    subkey2: 'value8',
    subkey3: 'value9'
  }
};

// 访问二维关联数组的值
console.log(myArray.key1.subkey1); // 输出：value1
console.log(myArray.key2.subkey3); // 输出：value6
console.log(myArray.key3.subkey2); // 输出：value8