這是我的 json 的樣子：invoices = {  "count": 1 "data": Array(0)[{    "company": "ABC PLC",    "customer": {      "name": "XYZ"    },    "invoiceFees": Array(2)[      0: {        "quarter": {          "q_name": "A",          "description": "payments for quarter A"        }      },      1: {        "quarter": {          "q_name": "B",          "description": "payments for quarter B"        }      }    ]  }]}我正在嘗試按季度對發票結果進行分組。這就是我的做法：console.log(_.groupBy(invoices.data.invoiceFees, 'quarter.q_name'));這會將所有內容切成空結果，如下所示：invoices = {}我在這里做錯了什么？我想要的輸出應該是這樣的：invoices = {"data": [{  "company": "ABC PLC",  "customer": {    "name": "XYZ"  },  "invoiceFees": [{      "quarter A:  {      "description": "payments for quarter A"    },    "quarter B:  {    "description": "payments for quarter B"  }}]}]}