在嵌套函数中实现条件判断获取数组传值的方法

var hzData=[];//杭州数据
var nbData=[];//宁波数据
var wzData=[];//温州数据

    function getCity(cityName) {
        if (cityName == 'hz') {
            return hzData;
        }
        if (cityName == 'nb') {
            return hzData;
        }
        if (cityName == 'wz') {
            return hzData;
        }
    }

   var newArr = [
        {
            "hz": {
                "alarmid": "41AE-BBC6-83BEF12F91AC",
                "clientid": "2e11722f670391d487",
                "clientname": "浙江大学附属小学"
            }
        },
        {
            "nb": {
                "alarmid": "68E98160-B3ED-41AE",
                "clientid": "487f4c29183a3d099",
                "clientname": "宁波大学附属小学"
            }
        }
    ];

   //获取对应数组的值，并返回;
    function getData(data) {
        return data;
    }
    //根据条件判断获取对应的值;
    function getMap(key, name) {
        //实际调用;
        return getData(newArr[key][name]);
    }