Question

我想通过通用键合并多个数组。我尝试了很多函数，但没有得到我所需要的。所有的功能给我一个结构不好的数组。因此，我需要您的帮助才能获得适当的帮助。我需要打字稿或JavaScript中的函数，这是我的示例

数组1：

"Student":[ {
"id":91,
"name":"john",
"age":22

 },
{
  "id":11,
"name":"donald",
"age":20},
]

数组2：

 "Courses":
  [
    {"id":91,
    "course name":"finance 1", 
    "course code":"fin12"}, 
    {"id":91, 
    "course name":"accounting",
    "course code":"acc1"}

  ]

数组3：

    "Instructor": [
  {
    "id":91, 
    "instructor-name":"justin"

  }, 
  {
    "id":91,
    "instructor-name":"leonardo"

  }, 
  {
    "id":16,
    "instructor-name":"david"

  } 

]

合并：

{
  "id": 91,
  "name": "john",
  "age": 22,
  "Course": [
    {
      "id": 91,
      "course name": "finance 1",
      "course code": "fin12"
    },
    {
      "id": 91,
      "course name": "accounting",
      "course code": "acc1"
    }
  ],
  "Instructor": [
    {
      "id": 91,
      "instructor name": "justin"
    },
    {
      "id": 91,
      "instructor name": "leonardo"
    }
  ]
}

如果不清楚。请通知我

Answer 1

您可以映射学生数组并根据id过滤另一个数组，以获取所有课程和讲义器。

const studentArray =[ {
"id":91,
"name":"john",
"age":22

 },
{
  "id":11,
"name":"donald",
"age":20},
]

 const coursesArray = 
  [
    {"id":91,
    "course name":"finance 1", 
    "course code":"fin12"}, 
    {"id":91, 
    "course name":"accounting",
    "course code":"acc1"}

  ]

    const instructorArray = [
  {
    "id":91, 
    "instructor-name":"justin"

  }, 
  {
    "id":91,
    "instructor-name":"leonardo"

  }, 
  {
    "id":16,
    "instructor-name":"david"

  } 
]

const output = studentArray.map(item => {
    const id = item.id;
    const course = coursesArray.filter(course => id === course.id);
    const instructor = instructorArray.filter(i => id === i.id);
    return { ...item, course , instructor };
});

console.log(output)

在一个json数组中合并多个json对象

1 个答案: