将包含嵌套对象的对象数组转换为简单的对象数组？

function flattenArray(arr) {
  let result = [];
  
  arr.forEach(obj => {
    let newObj = {};
    
    for (let key in obj) {
      if (typeof obj[key] === 'object' && obj[key] !== null) {
        let nestedObj = obj[key];
        
        for (let nestedKey in nestedObj) {
          newObj[`${key}.${nestedKey}`] = nestedObj[nestedKey];
        }
      } else {
        newObj[key] = obj[key];
      }
    }
    
    result.push(newObj);
  });
  
  return result;
}

// 示例用法
let nestedArray = [
  { id: 1, name: 'John', address: { city: 'New York', country: 'USA' } },
  { id: 2, name: 'Alice', address: { city: 'London', country: 'UK' } },
  { id: 3, name: 'Bob', address: { city: 'Paris', country: 'France' } }
];

let flattenedArray = flattenArray(nestedArray);
console.log(flattenedArray);