将数组中的对象合并为单个对象

function mergeObjectsFromArray(arr) {
  let mergedObj = {};
  for (let i = 0; i < arr.length; i++) {
    mergedObj = Object.assign(mergedObj, arr[i]);
  }
  return mergedObj;
}

// 示例用法
const arr = [
  {name: 'Alice', age: 25},
  {city: 'New York'},
  {hobby: 'Reading'}
];
const mergedObj = mergeObjectsFromArray(arr);
console.log(mergedObj);

// 输出结果:
// { name: 'Alice', age: 25, city: 'New York', hobby: 'Reading' }