javascript - .filter 中的 ES6 .filter

Question

所以我有如下数据:

[
     {
      "id": 0,
      "title": "happy dayys",
      "owner": {"id": "1", "username": "dillonraphael"},
      "tags": [{"value": "Art", "label": "Art"}],
      "items": []
     },
     {
      "id": 1,
      "title": "happy dayys",
      "owner": {"id": "1", "username": "dillonraphael"},
      "tags": [{"value": "Architecture", "label": "Architecture"}],
      "items": []
     },
]

我正在尝试过滤一个数组，只有当标签数组包含一个 == 到另一个字符串的值时才返回。

这是我想出的，但似乎仍在发回整个数组:

const tagMoodboards = _moodboards.filter(mb => { return mb.tags.filter(t => t.value == name) })

Answer 1

您不希望在 filter 中使用 filter - 相反，在过滤器内部，检查是否有 some 标签 对象具有您想要的 .value 属性

const _moodboards = [
     {
      "id": 0,
      "title": "happy dayys",
      "owner": {"id": "1", "username": "dillonraphael"},
      "tags": [{"value": "Art", "label": "Art"}],
      "items": []
     },
     {
      "id": 1,
      "title": "happy dayys",
      "owner": {"id": "1", "username": "dillonraphael"},
      "tags": [{"value": "Architecture", "label": "Architecture"}],
      "items": []
     },
];
const name = 'Architecture';
console.log(_moodboards.filter(({ tags }) => (
  tags.some(({ value }) => value === name)
)));