减少以日期为键的JavaScript对象数组？

我正在使用的应用程序正在用javascript输出一个数组，如下所示：

 let realData = [];
    realData.push({"2021-01-01":"5,000","2021-02-01":"5,000",
                  "2021-03-01":"5,000","2021-04-01":"5,000",
                  "2021-05-01":"5,000","2021-06-01":"5,000",
                  "2021-07-01":"5,000","2021-08-01":"5,000",
                  "2021-09-01":"5,000","2021-10-01":"5,000",
                  "2021-11-01":"5,000","2021-12-01":"5,000"});
    realData.push({"2021-01-01":"5,000","2021-02-01":"5,000",
                   "2021-03-01":"5,000","2021-04-01":"5,000",
                   "2021-05-01":"5,000","2021-06-01":"5,000",
                   "2021-07-01":"5,000","2021-08-01":"5,000",
                   "2021-09-01":"5,000","2021-10-01":"5,000",
                   "2021-11-01":"5,000","2021-12-01":"5,000"});
    realData.push({"2021-01-01":"5,000","2021-02-01":"5,000",
                   "2021-03-01":"5,000","2021-04-01":"5,000",
                   "2021-05-01":"5,000","2021-06-01":"5,000",
                   "2021-07-01":"5,000","2021-08-01":"5,000",
                   "2021-09-01":"5,000","2021-10-01":"5,000",
                   "2021-11-01":"5,000","2021-12-01":"5,000"});

console.log(realData);

[
    {

        "month": "2020-06-01", 
        "value": "2500.00",
 
    }, ..

每行有12个条目（每个月）

我正在寻找一种有效的方法来循环它们，并在同一个月求和；将每个对象合并到2021年1月将显示上面的20000个对象

我以前使用过以下代码：

 var foo = _.chain(data)
            .groupBy('month')
            .map(function (objects, period) {
                return {
                    month: period,
                    value: _.sumBy(objects, item => Number(item.value)),

                };
            })
            .value();

这真的很有效；但是我使用的数据没有命名键（即，在我有一个JSON文件之前：

 let realData = [];
    realData.push({"2021-01-01":"5,000","2021-02-01":"5,000",
                  "2021-03-01":"5,000","2021-04-01":"5,000",
                  "2021-05-01":"5,000","2021-06-01":"5,000",
                  "2021-07-01":"5,000","2021-08-01":"5,000",
                  "2021-09-01":"5,000","2021-10-01":"5,000",
                  "2021-11-01":"5,000","2021-12-01":"5,000"});
    realData.push({"2021-01-01":"5,000","2021-02-01":"5,000",
                   "2021-03-01":"5,000","2021-04-01":"5,000",
                   "2021-05-01":"5,000","2021-06-01":"5,000",
                   "2021-07-01":"5,000","2021-08-01":"5,000",
                   "2021-09-01":"5,000","2021-10-01":"5,000",
                   "2021-11-01":"5,000","2021-12-01":"5,000"});
    realData.push({"2021-01-01":"5,000","2021-02-01":"5,000",
                   "2021-03-01":"5,000","2021-04-01":"5,000",
                   "2021-05-01":"5,000","2021-06-01":"5,000",
                   "2021-07-01":"5,000","2021-08-01":"5,000",
                   "2021-09-01":"5,000","2021-10-01":"5,000",
                   "2021-11-01":"5,000","2021-12-01":"5,000"});

console.log(realData);

[
    {

        "month": "2020-06-01", 
        "value": "2500.00",
 
    }, ..

---

我试图实现的是可能的，还是需要重新查看数据的存储方式？

当我必须这样做时，我通常使用对象的帮助。看看这个片段是否对您有帮助

let测试=[
{"2021-01-01": "5,000", "2021-02-01": "5,000", "2021-03-01": "5,000", "2021-04-01": "5,000", "2021-05-01": "5,000"},
{"2021-01-01": "5,000", "2021-02-01": "5,000", "2021-03-01": "5,000", "2021-04-01": "5,000", "2021-05-01": "5,000"},
{"2021-01-01": "5,000", "2021-02-01": "5,000", "2021-03-01": "5,000", "2021-04-01": "5,000", "2021-05-01": "5,000"},
{"2021-01-01": "5,000", "2021-02-01": "5,000", "2021-03-01": "5,000", "2021-04-01": "5,000", "2021-05-01": "5,000"}];
常数和={}；
test.forEach（（行）=>{
Object.keys（行）.forEach（（键）=>{
如果（！sum.hasOwnProperty（键））{
和[键]=0；
}
求和[key]+=数字（第[key]行）。替换（/，/g'，）；
});
});
console.log（sum）；

当我必须做这样的事情时，我通常使用对象的帮助。看看这段代码是否对你有帮助

let测试=[
{"2021-01-01": "5,000", "2021-02-01": "5,000", "2021-03-01": "5,000", "2021-04-01": "5,000", "2021-05-01": "5,000"},
{"2021-01-01": "5,000", "2021-02-01": "5,000", "2021-03-01": "5,000", "2021-04-01": "5,000", "2021-05-01": "5,000"},
{"2021-01-01": "5,000", "2021-02-01": "5,000", "2021-03-01": "5,000", "2021-04-01": "5,000", "2021-05-01": "5,000"},
{"2021-01-01": "5,000", "2021-02-01": "5,000", "2021-03-01": "5,000", "2021-04-01": "5,000", "2021-05-01": "5,000"}];
常数和={}；
test.forEach（（行）=>{
Object.keys（行）.forEach（（键）=>{
如果（！sum.hasOwnProperty（键））{
和[键]=0；
}
求和[key]+=数字（第[key]行）。替换（/，/g'，）；
});
});
console.log（sum）；

我从吉尔伯托和我的同事那里得到了灵感，制作了迄今为止效率最高的一款

设i=years.length；
而(我--){
常数年=年[i]；
常量键=对象键（年）；
设m=keys.length；
而（m--）{
const month=键[m]；
//月值
常量值=+年[月]。替换（/，/g，）；
//添加到当前月份总数，否则将创建它
总和[月]=总和[月]| | 0+值；
}
}

我从吉尔伯托和我的同事那里得到灵感，做出了迄今为止最有效的一个

设i=years.length；
而(我--){
常数年=年[i]；
常量键=对象键（年）；
设m=keys.length；
而（m--）{
const month=键[m]；
//月值
常量值=+年[月]。替换（/，/g，）；
//添加到当前月份总数，否则将创建它
总和[月]=总和[月]| | 0+值；
}
}