如何在不改变原始数组的情况下更改对象键

function changeObjectKey(arr, oldKey, newKey) {
  var newArr = [];
  
  arr.forEach(function(obj) {
    var newObj = {};
    
    for (var key in obj) {
      if (key === oldKey) {
        newObj[newKey] = obj[key];
      } else {
        newObj[key] = obj[key];
      }
    }
    
    newArr.push(newObj);
  });
  
  return newArr;
}

// 示例用法
var originalArray = [
  { name: 'John', age: 25 },
  { name: 'Jane', age: 30 },
  { name: 'Bob', age: 35 }
];

var newArray = changeObjectKey(originalArray, 'name', 'fullName');
console.log(newArray);

[
  { fullName: 'John', age: 25 },
  { fullName: 'Jane', age: 30 },
  { fullName: 'Bob', age: 35 }
]