javascript - 将 Array 与对象数组进行比较并返回匹配对象的一部分

Question

下面有一个对象数组

const response = 
[
{
    id: 105,
    label: 'test',
    directories: [ '/api/1/directories/500' ]
  },
  {
    id: 337,
    label: 'test2',
    directories: [ '/api/1/directories/766' ]
  },
  {
    id: 200,
    label: 'test20',
    directories: [ '/api/1/directories/95' ]
  }
]

我有一个名为目录的数组

directories = [ '/api/1/directories/766', '/api/1/directories/95' ]

我正在尝试搜索/过滤响应以仅返回与目录数组中的目录匹配的对象的 ID

所以示例输出可以像下面这样，它只是匹配对象的 ID

sampleOut= [337, 200]

Answer 1

这可以按如下方式完成:

const out = response.filter(o => directories.includes(o.directories[0])).map(o => o.id);

请查看以下可运行的代码片段。

const response = [
  {
    id: 105,
    label: 'test',
    directories: [ '/api/1/directories/500' ]
  },
  {
    id: 337,
    label: 'test2',
    directories: [ '/api/1/directories/766' ]
  },
  {
    id: 200,
    label: 'test20',
    directories: [ '/api/1/directories/95' ]
  }
];

const directories = [ '/api/1/directories/766', '/api/1/directories/95' ];

const out = response.filter(o => directories.includes(o.directories[0])).map(o => o.id);
console.log(out)