如何从数组中的多个对象中恰好提取2个键和值

const arr = [
  { name: 'Alice', age: 25, gender: 'female' },
  { name: 'Bob', age: 30, gender: 'male' },
  { name: 'Charlie', age: 35, gender: 'male' }
];

// 方法一：遍历数组
const extractedData1 = [];
arr.forEach(obj => {
  const keys = Object.keys(obj);
  const values = Object.values(obj);
  const extractedObj = {
    key1: keys[0],
    value1: values[0],
    key2: keys[1],
    value2: values[1]
  };
  extractedData1.push(extractedObj);
});
console.log(extractedData1);

// 方法二：使用map()方法和解构赋值
const extractedData2 = arr.map(({ name, age }) => ({ key1: 'name', value1: name, key2: 'age', value2: age }));
console.log(extractedData2);