JS / React -如何从一个对象中一次.map两个对象

const obj = {
  key1: 'value1',
  key2: 'value2',
  key3: 'value3',
  key4: 'value4',
};

const result = Object.entries(obj).map(([key, value]) => {
  return {
    key1: key,
    value1: value,
    key2: key,
    value2: value,
  };
});

console.log(result);

[
  { key1: 'key1', value1: 'value1', key2: 'key1', value2: 'value1' },
  { key1: 'key2', value1: 'value2', key2: 'key2', value2: 'value2' },
  { key1: 'key3', value1: 'value3', key2: 'key3', value2: 'value3' },
  { key1: 'key4', value1: 'value4', key2: 'key4', value2: 'value4' }
]