使用.map修改数组内的对象

const originalArray = [
  { id: 1, name: 'Alice' },
  { id: 2, name: 'Bob' },
  { id: 3, name: 'Charlie' }
];

const modifiedArray = originalArray.map((item, index, array) => {
  // 修改name属性为大写
  item.name = item.name.toUpperCase();
  return item;
});

console.log(modifiedArray);

[
  { id: 1, name: 'ALICE' },
  { id: 2, name: 'BOB' },
  { id: 3, name: 'CHARLIE' }
]