.filter中的ES6 .filter [英] ES6 .filter within a .filter

问题描述

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": []
     },
]

我正在尝试过滤数组，并且仅在标签数组包含 == 到另一个字符串。

I'm trying to filter through an array and only return if the tags array contains a value that is == to another string.

这是我想出的，但似乎仍然会发回整个数组：

This is what I came up with but still seems to be sending back the whole array:

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

推荐答案

您不想要过滤器内的过滤器-而是在过滤器内，检查 some 标记对象中的c $ c>具有所需的 .value 属性

You don't want a filter inside a filter - rather, inside the filter, check if some of the tags objects have the .value property that you want

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)
)));

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