a.js

index = [
{
    obj: window.getListByCountryTypeService1,
    data: {
        creationDate: "createTime",
        modifiedDate: "modifyTime",
        op: "operator"
    }
},
{
    obj: window.getListByCountryTypeService2,
    data: {
        creationDate: "createTime",
        modifiedDate: "modifyTime",
        op: "operator"
    }
},
{
    obj: window.getIndexRecommendList,
    data: {
        creationDate: "createTime",
        modifiedDate: "modifyTime",
        op: "operator"
    }
},
{
    obj: window.getTimelineService,
    data: {
        creationDate: "createTime",
        modifiedDate: "modifyTime",
        op: "dataInfoOperator"
    }
}]
myCompound = {
    creationDate: [],
    modifiedDate: [],
    op: []
};
shouldConvertToDate = v => v.toLowerCase().indexOf("date") >= 0 || v.toLowerCase().indexOf("time") >= 0;
washCompound = function (data, curIndex) {
    var ret = Array.from(new Set(data[curIndex])).filter(Boolean);
    if(!shouldConvertToDate(curIndex)) return ret; // fun starts down here
    var isJSDate = v => !isNaN(v) && v.toString().length == 13;
    var isUnixTime = v => !isNaN(v) && v.toString().length == 10;
    ret = ret.map(x => (!isJSDate(x) && !isUnixTime(x) ? x : new Date(x * (isUnixTime(x) ? 1000 : 1))));
    return ret;
}
for(i of index) {
    for(i2 in i.data) {
        for(foundStuff in i.obj) {
            foundStuff = i.obj[foundStuff];
            gotData = foundStuff[i.data[i2]];
            myCompound[i2].push(gotData);
            myCompound[i2] = washCompound(myCompound, i2); // wash data often
        }
    }
}
myCompound;