Javascript 根据对象中的键长度/计数对对象数组排序

考虑json格式的对象数组，如下所示

[
    {_id: "acd", employee: "jack"},
    {_id: "sdd", employee: "Monica", timeTaken: 0.6},
    {_id: "eee", employee: "Rose", timeTaken: 0.6, task: "GST"},
]

[       
    {_id: "eee", employee: "Monica", timeTaken: 0.6, task: "GST"},
    {_id: "sdd", employee: "Monica", timeTaken: 0.6},
    {_id: "acd", employee: "jack"},
]

我只想根据对象中键的数量对对象数组进行排序。如果对象具有最大数量的关键点，则必须将其放置在顶部

预期结果如下：

[
    {_id: "acd", employee: "jack"},
    {_id: "sdd", employee: "Monica", timeTaken: 0.6},
    {_id: "eee", employee: "Rose", timeTaken: 0.6, task: "GST"},
]

[       
    {_id: "eee", employee: "Monica", timeTaken: 0.6, task: "GST"},
    {_id: "sdd", employee: "Monica", timeTaken: 0.6},
    {_id: "acd", employee: "jack"},
]

---

非常感谢您的帮助：）

使用

排序

根据对象中的键数对对象数组进行排序

var-arr=[
{u id:“acd”，雇员：“jack”}，
{u id:“sdd”，员工：“Monica”，时间：0.6}，
{u id:“eee”，员工：“Rose”，时间：0.6，任务：“GST”}，
];
arr.sort（函数（a，b）{
返回Object.keys（b）.length-Object.keys（a）.length；
});
控制台日志（arr）检查此答案排序会改变原始数组。分配给新变量没有意义。给人的印象是他们不是same@charlietfl：谢谢你让我知道。