如何将两个不同散列数组的值一起添加？

function mergeHashArrays(arr1, arr2) {
  var mergedArray = {};

  // 遍历第一个散列数组
  for (var key in arr1) {
    if (arr1.hasOwnProperty(key)) {
      mergedArray[key] = arr1[key];
    }
  }

  // 遍历第二个散列数组
  for (var key in arr2) {
    if (arr2.hasOwnProperty(key)) {
      // 检查新的散列数组中是否已存在相同的键
      if (mergedArray.hasOwnProperty(key)) {
        // 根据需求进行冲突解决，这里以覆盖为例
        mergedArray[key] = arr2[key];
      } else {
        mergedArray[key] = arr2[key];
      }
    }
  }

  return mergedArray;
}

// 示例用法
var hashArray1 = { "key1": "value1", "key2": "value2" };
var hashArray2 = { "key2": "new value", "key3": "value3" };

var mergedArray = mergeHashArrays(hashArray1, hashArray2);
console.log(mergedArray);