javascript - 比较并数组化为对象数组，然后返回匹配对象的一部分

我下面有一系列对象

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

因此示例输出可能类似于以下内容，这只是匹配对象的ID

sampleOut= [337, 200]

最佳答案

您可以使用reduce并通过indexOf检查是否存在

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' ]
  }
]

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

var result = response.reduce((acc, item)=>{

  if(directories.indexOf(item.directories[0]) > -1){
    acc.push(item.id);

  }
  return acc;
},[]);

console.log(result);