javascript - 从数组中分离对象并将其分配给变量

Question

我有以下需要循环的数组:

var arr = [{
  "id": 111,
  "wbs_name": "Mechanical",
  "parent": 'root',
}, {
  "id": 222,
  "wbs_name": "Electrical",
  "parent": 111,
}, {
  "id": 333,
  "wbs_name": "Systems",
  "parent": 111,
},]

我的输出应该是这样的:

 var mechanical = {
     "id": 111,
     "wbs_name": "mechanical",
     "parent": 0,
 },

 var electrical= {
     "id": 222,
     "wbs_name": "electrical",
     "parent": mechanical,
 },

 var systems = {
     "id": 222,
     "wbs_name": "systems",
     "parent": mechanical,
 },

我已经尝试遍历数组并将对象插入另一个数组，但我不知道如何同时将它们分配给一个变量(其中变量名称是“wbs_name”，“parent”是一些其他父对象的变量名。

Answer 1

试试这个，

var mechanical = filterList('Mechanical');
var electrical = filterList('Electrical');
var systems = filterList('Systems');
function filterList(filterBy){
    return arr.filter((ad)=>{
        return ad.wbs_name == filterBy;
    })[0];
};
console.log(mechnical);
console.log(electrical);
console.log(systems);

将得到 o/p 为 -

"mechnical"= {
  id: 111, 
  wbs_name: "Mechanical", 
  parent: "root"
}