Question

我有一个如下所示的数据对象：

 costByLob:

 [
    {"key":"Retail","values":[
        {"key":"2015-05","values":1},
        {"key":"2015-06","values":1},
        {"key":"2015-07","values":1},
        {"key":"2015-08","values":1},
        {"key":"2015-09","values":1},
        {"key":"2015-10","values":1},
        {"key":"2015-11","values":1},
        {"key":"2015-12","values":1},
        {"key":"2016-01","values":1},
        {"key":"2016-02","values":1},
        {"key":"2016-03","values":1},
        {"key":"2016-04","values":1},
        {"key":"2016-05","values":1},
        {"key":"2016-06","values":1},
        {"key":"2016-07","values":1},
        {"key":"2016-08","values":1},
        ]
    }
 ]

我尝试使用"key"将YYYY-MM从new date()转换为数字日期版本。

我可以循环遍历整个对象，然后将其重新组合在一起，但有更简单的方法可以循环使用吗？

Answer 1

正如其他人所说，你必须以某种方式循环。但是，Array.prototype.map函数可以使您的代码更简洁：

costByLob = [
    {"key":"Retail","values":[
        {"key":"2015-05","values":1},
        {"key":"2015-06","values":1},
        {"key":"2015-07","values":1},
        {"key":"2015-08","values":1},
        {"key":"2015-09","values":1},
        {"key":"2015-10","values":1},
        {"key":"2015-11","values":1},
        {"key":"2015-12","values":1},
        {"key":"2016-01","values":1},
        {"key":"2016-02","values":1},
        {"key":"2016-03","values":1},
        {"key":"2016-04","values":1},
        {"key":"2016-05","values":1},
        {"key":"2016-06","values":1},
        {"key":"2016-07","values":1},
        {"key":"2016-08","values":1},
        ]
    }
 ];
     
costByLob[0]["values"].map(function(data){
     data["key"] = new Date(data["key"]).getTime();
     return data;
});
console.log(JSON.stringify(costByLob, '', 2))

将字符串转换为数据对象内的日期

1 个答案: