我有以下 json 和對象。acctData = [{"acctNum": "AAA - 1234","user": "Alice"},{"acctNum": "AAA - 5231","user": "Bob"},{"acctNum": "AAA - 9921","user": "Alice"},{"acctNum": "AAA - 8191","user": "Alice"}];balance = {"AAA - 1234": 4593.22,"AAA - 9921": 0,"AAA - 5231": 232142.5,"AAA - 8191": 4344};我想合并它以獲得以下響應[{acctNum: "AAA - 1234", user: "Alice", balance: 4593.22},{acctNum: "AAA - 5231", user: "Bob", balance: 232142.5},{acctNum: "AAA - 9921", user: "Alice", balance: 0},{acctNum: "AAA - 8191", user: "Alice", balance: 4344}]function myFunction() {    for (var key in acctData) {       for(var name in balance) {         if ( acctData[key].acctNum === name) {          acctData[key]['balance']= balance[acctData[key].acctNum];          break;         }       }     }}我這是使用香草javascript的正確方法還是有更有效的方法？