Lodash过滤器需要得到完全匹配

Question

当尝试使用 Lodash 过滤数组时，我得到了该数组的所有元素。只需要获取特定的数组。请找到我目前的编码

var sizeList = [{
                    id: 1,
                    title: "Test1",
                    type: [{
                        name: "1.1",
                        present: false
                    }, {
                        name: "1.2",
                        present: true
                    }, {
                        name: "1.3",
                        present: false
                    }]
                }, {
                    id: 2,
                    title: "Test2",
                    type: [{
                        name: "2.1",
                        present: false
                    }, {
                        name: "2.2",
                        present: true
                    }, {
                        name: "2.3",
                        present: false
                    }]
                }, {
                    id: 3,
                    title: "Test3",
                    type: [{
                        name: "3.1",
                        present: false
                    }, {
                        name: "3.2",
                        present: true
                    }, {
                        name: "3.3",
                        present: true
                    }]
                }],
                result = _.filter(sizeList, {
                    type: [{
                        name: '3.3'
                    }]
                });

            console.log(result);

我的问题是，当我使用 name:3.3 过滤时，我得到了 Test3 数组中的所有元素，包括 3.1、3.2 和 3.3。我只需要3.3。谁能帮忙。

Answer 1

可以对过滤后的项进行类型映射，也可以对类型数组进行过滤：

var sizeList = [{"id":1,"title":"Test1","type":[{"name":"1.1","present":false},{"name":"1.2","present":true},{"name":"1.3","present":false}]},{"id":2,"title":"Test2","type":[{"name":"2.1","present":false},{"name":"2.2","present":true},{"name":"2.3","present":false}]},{"id":3,"title":"Test3","type":[{"name":"3.1","present":false},{"name":"3.2","present":true},{"name":"3.3","present":true}]}];

var result = _(sizeList)
  .filter({
    type: [{ name: '3.3' }]
  })
  .map(({ type, ...o }) => ({
    ...o,
    type: _.filter(type, { name: '3.3' })
  }))
  .value();

console.log(result);

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.15/lodash.js"></script>