如何在Dart/Flutter中基于一个键合并两个对象数组

Map mergeArrays(List<Map> array1, List<Map> array2, String key) {
  Map mergedMap = {};
  // 合并逻辑将在下面实现
  return mergedMap;
}

for (var obj in array1) {
  var keyValue = obj[key];
  mergedMap[keyValue] = obj;
}

for (var obj in array2) {
  var keyValue = obj[key];
  if (mergedMap.containsKey(keyValue)) {
    mergedMap[keyValue] = {...mergedMap[keyValue], ...obj};
  } else {
    mergedMap[keyValue] = obj;
  }
}

return mergedMap;

Map mergeArrays(List<Map> array1, List<Map> array2, String key) {
  Map mergedMap = {};

  for (var obj in array1) {
    var keyValue = obj[key];
    mergedMap[keyValue] = obj;
  }

  for (var obj in array2) {
    var keyValue = obj[key];
    if (mergedMap.containsKey(keyValue)) {
      mergedMap[keyValue] = {...mergedMap[keyValue], ...obj};
    } else {
      mergedMap[keyValue] = obj;
    }
  }

  return mergedMap;
}

void main() {
  List<Map> array1 = [
    {'id': 1, 'name': 'John'},
    {'id': 2, 'name': 'Jane'},
  ];

  List<Map> array2 = [
    {'id': 1, 'age': 25},
    {'id': 3, 'age': 30},
  ];

  String key = 'id';

  Map mergedArray = mergeArrays(array1, array2, key);
  print(mergedArray);
}

{1: {id: 1, name: John, age: 25}, 2: {id: 2, name: Jane}, 3: {id: 3, age: 30}}