通过值为数组的键组合两个对象

function combineObjects(obj1, obj2) {
  let newObj = {};
  for (let key1 in obj1) {
    let value1 = obj1[key1];
    for (let key2 in obj2) {
      let value2 = obj2[key2];
      if (Array.isArray(value1) && Array.isArray(value2) && value1.includes(value2)) {
        newObj[key1] = value2;
        break;
      }
    }
  }
  return newObj;
}

// 示例数据
let obj1 = { a: [1, 2, 3], b: [4, 5, 6], c: [7, 8, 9] };
let obj2 = { d: 2, e: 5, f: 8 };

// 调用函数
let combinedObj = combineObjects(obj1, obj2);

console.log(combinedObj); 
// 输出: { a: 2, b: 5, c: 8 }