从JavaScript对象中提取值并按正确的顺序放入数组

Question

我正在尝试使用从对象提取的利率变量填充一个空数组。 解决方案是不正确的，因为值的顺序不正确，即Year 2015: 10th month's value, 11th, 12th, 1st, 2nd, 3rd ..9th . Then 2016: 10, 11, 12, 1,..7,8,9 etc Year 2015: 10th month's value, 11th, 12th, 1st, 2nd, 3rd ..9th . Then 2016: 10, 11, 12, 1,..7,8,9 etc 。 换句话说，它总是首先提取第10个值，而不是第1个值。 以下是示例数据和我的代码。

样本数据：

2015:
01:{interestrate: 3.67, count: 4}
02:{interestrate: 3.71, count: 4}
03:{interestrate: 3.7699999999999996, count: 4}
04:{interestrate: 3.6720000000000006, count: 5}
05:{interestrate: 3.84, count: 4}
06:{interestrate: 3.9825, count: 4}
07:{interestrate: 4.046, count: 5}
08:{interestrate: 3.905, count: 4}
09:{interestrate: 3.8899999999999997, count: 4}
10:{interestrate: 3.7959999999999994, count: 5}
11:{interestrate: 3.9425, count: 4}
12:{interestrate: 3.964, count: 5}

2016:
01:{interestrate: 3.8725000000000005, count: 4}
02:{interestrate: 3.66, count: 4}
03:{interestrate: 3.6940000000000004, count: 5}
04:{interestrate: 3.605, count: 4}
05:{interestrate: 3.6, count: 4}
06:{interestrate: 3.568, count: 5}
07:{interestrate: 3.4400000000000004, count: 4}
08:{interestrate: 3.435, count: 4}
09:{interestrate: 3.46, count: 5}
10:{interestrate: 3.47, count: 4}
11:{interestrate: 3.7699999999999996, count: 4}
12:{interestrate: 4.198, count: 5}

码：

let arr = [];

for (x in result) {
  for (i in result[x]) {
    //console.log(result[x][i]['interestrate']);
    arr.push(result[x][i]['interestrate']);
  }
}

如何重写代码，以便按以下顺序获得利息值2015: 1,2,3,4,5,6,7,8,9,10,11,12. Then 2016: 1,2,3,4,5,6,7,8,9,10,11,12 Then 2017: etc 2015: 1,2,3,4,5,6,7,8,9,10,11,12. Then 2016: 1,2,3,4,5,6,7,8,9,10,11,12 Then 2017: etc 。

输出示例： [3.67, 3.71, 3.769, 3.672, etc]

Answer 1

字典（Javascript中的对象就像字典一样）未排序，因此必须在进入循环之前对键进行排序。

样本数据：

let result = {
    2015: {
        1:{interestrate: 3.67, count: 4},
        2:{interestrate: 3.71, count: 4},
        3:{interestrate: 3.7699999999999996, count: 4},
        4:{interestrate: 3.6720000000000006, count: 5},
        5:{interestrate: 3.84, count: 4},
        6:{interestrate: 3.9825, count: 4},
        7:{interestrate: 4.046, count: 5},
        8:{interestrate: 3.905, count: 4},
        9:{interestrate: 3.8899999999999997, count: 4},
        10:{interestrate: 3.7959999999999994, count: 5},
        11:{interestrate: 3.9425, count: 4},
        12:{interestrate: 3.964, count: 5}},
    2016: {
        1:{interestrate: 3.8725000000000005, count: 4},
        2:{interestrate: 3.66, count: 4},
        3:{interestrate: 3.6940000000000004, count: 5},
        4:{interestrate: 3.605, count: 4},
        5:{interestrate: 3.6, count: 4},
        6:{interestrate: 3.568, count: 5},
        7:{interestrate: 3.4400000000000004, count: 4},
        8:{interestrate: 3.435, count: 4},
        9:{interestrate: 3.46, count: 5},
        10:{interestrate: 3.47, count: 4},
        11:{interestrate: 3.7699999999999996, count: 4},
        12:{interestrate: 4.198, count: 5}
}};

码：

// If you just use sort(), the order will be wrong, because it will
// be sort alphabetically, and 11 would appear before 2.
function compareNumbers(a, b)
{
    return a - b;
}

let arr = [];

Object.keys(result).sort(compareNumbers).forEach(function(year) {
  Object.keys(result[year]).sort(compareNumbers).forEach(function(month) {
    arr.push(result[year][month]['interestrate']);
  });
});

console.log(arr);