如何在javascript中重新构造firebase数据

鉴于以下情况，如何重新构造数据，使标记结构如下所示

"tags" : {
  "Tag3": true,
  "Tag4": true
},

目前我的代码将数据推送到firebase，如下所示：

"-KXcnfob3Vo3s8bL9WSI" : {
      "name" : "Product 2",
      "description" : "Description of product 2",
      "tags" : [ "Tag 1", "Tag 2", "Tag 3", "etc." ],
      "url" : "websiteURL2.com",

    }

  "-KXcnfob3Vo3s8bL9WSI" : {
    "name" : "Product 2",
    "description" : "Description of product 2",
    "tags" : {
      "Tag3": true,
      "Tag4": true
    },
    "url" : "websiteURL2.com"
  }

我希望这样做：

"-KXcnfob3Vo3s8bL9WSI" : {
      "name" : "Product 2",
      "description" : "Description of product 2",
      "tags" : [ "Tag 1", "Tag 2", "Tag 3", "etc." ],
      "url" : "websiteURL2.com",

    }

  "-KXcnfob3Vo3s8bL9WSI" : {
    "name" : "Product 2",
    "description" : "Description of product 2",
    "tags" : {
      "Tag3": true,
      "Tag4": true
    },
    "url" : "websiteURL2.com"
  }

以下是相关代码：

firebase.database().ref().child('products').push({
                name: $scope.product.name,
                description: $scope.product.description,
                url: $scope.product.url,
                dateCreated: Date(),
                tags: $scope.productTags
}



$scope.addToTag = function(tag) {
    if($scope.productTags.indexOf(tag) == -1)
      $scope.productTags.push(tag);

  };

---

提前谢谢

像这样更改addToTag方法

$scope.addToTag=函数（标记）{

})

确保$scope.productTags是一个对象

var-productTags={}；
var addToTag=函数（标记）{
productTags[tag]=true；
};
addToTag（“Tag1”）；
console.log（productTags）像手套一样合身！！非常感谢！！