Lodash 迭代嵌套循环

Question

我正在尝试遍历下面的 Collections JSON 对象。我正在尝试查找具有来自 tagArray 的标签之一的集合元素。基本上，这是一个过滤练习，让集合元素具有从 tagArray 中选择的标签。

           {
            1: {
                "description": "AAA",
                "tags": [
                    {
                        "name": "tag1",
                    },
                    {
                        "name": "tag2",
                    },
                    {
                        "name": "tag3",
                    },
                ],
                "name": "XYZ",
            },
            2: {
                "description": "BBB",
                "tags": [
                    {
                        "name": "tag1",
                    }
                ],
                "name": "CCC",
            },
            3: {
                "description": "xms",
                "tags": [],
                "name": "Huo",
            },
            4: {
                "description": "asd",
                "tags": [],
                "name": "TXS",
            }
         }

tagArray 看起来像这样：[ tag1, tag2, ... ]

我已经使用 lodash 将其编码如下，它工作正常。但我不确定是否可以进一步改进以及如何改进？

const filterByTags = (collections, filterTags) =>  {

let filteredCollections = _.pickBy(collections, (collection) => {
                              let collectionWithTag = false;
                              _.map(collection.tags, (collectionTag) => {
                                if (filterTags.indexOf(collectionTag.name) !== -1) {
                                  collectionWithTag = true;
                                  return collectionWithTag;
                                }
                              });
                              return collectionWithTag;
                            });
  return filteredCollections;
};

Answer 1

• 您不想使用pickBy，而是使用filter (Lodash/native)
• 您不想使用map，而是使用some (Lodash/native)
• 您不想使用indexOf，而是使用includes (Lodash/native)

function filterByTags(collections, filterTags) {
    return _.filter(collections, collection => {
        return _.some(collection.tags, collectionTag => {
            return _.includes(filterTags, collectionTag.name);
        });
    });
}