用Javascript获取对象id

Question

我有以下对象数组：

[
  {
    "id": 97,
    "name": "Jon",
    "technologies": [
      {
        "id": 6,
        "name": "React"
      },
      {
        "id": 7,
        "name": "Messageria"
      }
    ]
  },
  {
    "id": 98,
    "name": "Doe",
    "technologies": [
      {
        "id": 2,
        "name": "Javascript"
      },
      {
        "id": 6,
        "name": "React"
      }
    ]
  },
  {
    "id": 99,
    "name": "Mark",
    "technologies": [
      {
        "id": 8,
        "name": "PHP"
      },
      {
        "id": 9,
        "name": "Laravel"
      }
    ]
  }
]

我如何过滤这个数组，只返回那些拥有id 6技术的开发人员？

我需要的回报仅仅是与技术id 6有关系的开发人员，但是我需要其他相关技术也出现在开发人员面前。

我知道通过find方法可以做到这一点，但我不知道如何实现它。

const result = developers.find(dev => dev.technologies ?);

正确的表格是什么？

Answer 1

对于此任务，可以将过滤器与一些数组操作结合使用。就像这样：

persons.filter(person => person.technologies.some(tech => tech.id == 6))

Answer 2

这将返回技术人员的详细信息id 6：

persons = [
  {
    "id": 97,
    "name": "Jon",
    "technologies": [
      {
        "id": 6,
        "name": "React"
      },
      {
        "id": 7,
        "name": "Messageria"
      }
    ]
  },
  {
    "id": 98,
    "name": "Doe",
    "technologies": [
      {
        "id": 2,
        "name": "Javascript"
      },
      {
        "id": 6,
        "name": "React"
      }
    ]
  },
  {
    "id": 99,
    "name": "Mark",
    "technologies": [
      {
        "id": 8,
        "name": "PHP"
      },
      {
        "id": 9,
        "name": "Laravel"
      }
    ]
  }
]

persons.filter(person => person.technologies.find(tech => tech.id == 6))

Answer 3

您需要使用一些来查找元素是否存在特定id：

​

const data = [
  {
    "id": 97,
    "name": "Jon",
    "technologies": [
      {
        "id": 6,
        "name": "React"
      },
      {
        "id": 7,
        "name": "Messageria"
      }
    ]
  },
  {
    "id": 98,
    "name": "Doe",
    "technologies": [
      {
        "id": 2,
        "name": "Javascript"
      },
      {
        "id": 6,
        "name": "React"
      }
    ]
  },
  {
    "id": 99,
    "name": "Mark",
    "technologies": [
      {
        "id": 8,
        "name": "PHP"
      },
      {
        "id": 9,
        "name": "Laravel"
      }
    ]
  }
]

const myFilteredData = data.filter(test => test.technologies.some(data => data.id===6));

console.log(
myFilteredData
)

​