如何获得嵌套的可观察对象

Question

我正在研究角度4应用程序加上rxjs 5.x。

json数据结构如下。

请有人告诉我如何让rxjs运营商的班级ID不等于1的所有学生名单。

谢谢

[
  {
    "id": 1,
    "class": {
      "id": 1,
      "name": "English"
    },
    "students": [
      {
        "student": {
          "id": 101,
          "name": "hi101",
          "email": "hi101@marr.com.au"
        }
      },
      {
        "student": {
          "id": 102,
          "name": "hi101",
          "email": "hi101@marr.com.au"
        }
      }
    ]
  },
  {
    "id": 2,
    "class": {
      "id": 2,
      "name": "Physics"
    },
    "students": [
      {
        "student": {
          "id": 201,
          "name": "ph201",
          "email": "ph201@marr.com.au"
        }
      },
      {
        "student": {
          "id": 202,
          "name": "ph202",
          "email": "ph202@marr.com.au"
        }
      }
    ]
  },
  {
    "id": 3,
    "class": {
      "id": 3,
      "name": "Maths"
    },
    "students": [
      {
        "student": {
          "id": 301,
          "name": "m301",
          "email": "m301@marr.com.au"
        }
      },
      {
        "student": {
          "id": 302,
          "name": "m302",
          "email": "m302@marr.com.au"
        }
      }
    ]
  }
]