-Arraymerge上所需的抖动

Question

我正在尝试使用array合并一个标签数组。

这是输入和预期输出

输入JSON：

{
  "students": [
    {
      "student_name": "Xavier"
    },
    {
      "student_name": "moses"
    },
    {
      "student_name": "joseph"
    }
  ]
}

预期产出如下

{
  "students": {
    "student_name": "Xavier,moses,joseph"
  }
}

提前谢谢！

Answer 1

您可以使用这些连续的规范。

[
 // create a list to combine all student names nested within "students" object 
  {
    "operation": "shift",
    "spec": {
      "students": {
        "*": {
          "*": "&2.&"
        }
      }
    }
  },
 // concatenate all members of the list at once by using "join"
  {
    "operation": "modify-overwrite-beta",
    "spec": {
      "students": {
        "*": "=join(',',@(1,&))"
      }
    }
  }
]

http://jolt-demo.appspot.com/站点上的演示

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