javascript - 如何将此嵌套数据的返回值打印为数组

Question

我想[4, 5, 2]在以下嵌套数组/对象中打印为主管的值。

var data = {
   supervisors: [
     {
      0: [
          { 
            id: 4, 
            name: "Reporter"
          }
        ]
     },
     {
      1: [
          { 
            id: 5, 
            name: "Officer"
          }
        ]
     },
     {
      2: [
          { 
            id: 2, 
            name: "Coordinator"
          }
        ] 
     },
     ]
};

如何循环遍历数据？

标签： javascriptarraysloopsforeachnested-loops

Answer 1

let data = {
  supervisors: [{
      0: [{
        id: 4,
        name: "Reporter"
      }]
    },
    {
      1: [{
        id: 5,
        name: "Officer"
      }]
    },
    {
      2: [{
        id: 2,
        name: "Coordinator"
      }]
    },
  ]
};

let output = []
data.supervisors.forEach(item => {

  output.push(item[Object.keys(item)][0].id)

});

console.log(output)