Javascript 高效地提取未知数据、分离并以特定格式存储？

我有需要以特定方式进行排序、筛选和存储的数据。我会通过展示来解释。以下是数据：

var pieData, cakeData, icecreamData;

var desserts = [
    {
        pies: [
            {
                name: "blueberry",
                count: 3
            },
            {
                name: "pumpkin",
                count: 6
            },
            {
                name: "apple",
                count: 9
            }
        ],
        cakes: [
            {
                name: "chocolate",
                count: 3
            },
            {
            name: "foam",
            count: 6
            },
            {
                name: "wedding",
                count: 9
            }
        ],
        icecream: [
            {
                name: "chocolate",
                count: 3
            },
            {
                name: "strawberry",
                count: 6
            },
            {
                name: "mint-chip",
                count: 9
            }
        ],
        date: "2016-01-06T00:00:00"
    },
    {
        pies: [
            {
                name: "blueberry",
                count: 2
            },
            {
                name: "pumpkin",
                count: 4
            },
            {
                name: "apple",
                count: 6
            }
        ],
        cakes: [
            {
                name: "chocolate",
                count: 2
            },
            {
                name: "foam",
                count: 4
            },
            {
                name: "wedding",
                count: 6
            }
        ],
        icecream: [
            {
                name: "chocolate",
                count: 2
            },
            {
                name: "strawberry",
                count: 4
            },
            {
                name: "mint-chip",
                count: 6
            }
        ],
        date: "2016-01-07T00:00:00"
    },
    {
        pies: [
            {
                name: "blueberry",
                count: 4
            },
            {
                name: "pumpkin",
                count: 8
            },
            {
                name: "apple",
                count: 12
            }
        ],
        cakes: [
            {
                name: "chocolate",
                count: 4
            },
            {
                name: "foam",
                count: 8
            },
            {
                name: "wedding",
                count: 12
            }
        ],
        icecream: [
            {
                name: "chocolate",
                count: 4
            },
            {
                name: "strawberry",
                count: 8
            },
            {
                name: "mint-chip",
                count: 12
            }
        ],
        date: "2016-01-08T00:00:00"
    }
];

所以我有我的数据。这些数据基本上是指馅饼、蛋糕和冰淇淋的类型，它们的数量、名称和数量可能会有所不同。甜点中的每个对象都是一天，日期是最后一个属性。我会直接说我想从中得到什么，然后再进一步解释。以下是我需要从中得到的：

pieData = [
    {
        name: "blueberry",
        dates: ["2016-01-06T00:00:00", "2016-01-07T00:00:00", "2016-01-08T00:00:00"],
        counts: [3, 2, 4]
    },
    {
        name: "pumpkin",
        dates: ["2016-01-06T00:00:00", "2016-01-07T00:00:00", "2016-01-08T00:00:00"],
        counts: [6, 4, 8]
    },
    {
        name: "apple",
        dates: ["2016-01-06T00:00:00", "2016-01-07T00:00:00", "2016-01-08T00:00:00"],
        counts: [9, 6, 12]
    }
];
cakeData = [
    {
        name: "chocolate",
        dates: ["2016-01-06T00:00:00", "2016-01-07T00:00:00", "2016-01-08T00:00:00"],
        counts: [3, 2, 4]
    },
    {
        name: "foam",
        dates: ["2016-01-06T00:00:00", "2016-01-07T00:00:00", "2016-01-08T00:00:00"],
        counts: [6, 4, 8]
    },
    {
        name: "wedding",
        dates: ["2016-01-06T00:00:00", "2016-01-07T00:00:00", "2016-01-08T00:00:00"],
        counts: [9, 6, 12]
    }
];
icecreamData = [
    {
        name: "chocolate",
        dates: ["2016-01-06T00:00:00", "2016-01-07T00:00:00", "2016-01-08T00:00:00"],
        counts: [3, 2, 4]
    },
    {
        name: "strawberry",
        dates: ["2016-01-06T00:00:00", "2016-01-07T00:00:00", "2016-01-08T00:00:00"],
        counts: [6, 4, 8]
    },
    {
        name: "mint-chip",
        dates: ["2016-01-06T00:00:00", "2016-01-07T00:00:00", "2016-01-08T00:00:00"],
        counts: [9, 6, 12]
    }
];

因此，我需要将desserts变量传递给一个函数，并让它将在原始数据顶部声明的pieData、cakeData和icecreamData变量设置为我在第二段代码中显示的对象数组

需要注意的几点：

在输出数据中，这些值对应于原始数据中最初指定的天数。例如，pieData[0]。日期[0]对应于pieData[0]。按原始数据中显示的[0]计数

每种甜点可能有无限种，也可能没有。这意味着原始数据中的“饼图”数组中可能有10个不同的对象，或者没有。但不管馅饼、蛋糕和冰淇淋是空的还是里面有一千个东西，它们都会出现

我不知道每种甜点都会有哪一种。它可能是任何东西。因此，馅饼可以被命名为“南瓜”，也可以被命名为“电池酸”

---

我能想到的唯一解决方案是执行多个循环和嵌套循环，而且总体上代码太多。我知道必须有一些有效的魔法才能正确完成这项工作。

这会将其转换为您想要的格式

var-pieData=[]、cakeData=[]、icecreamData=[]；
var甜点=[
{
馅饼：[
{
名称：“蓝莓”，
计数：3
},
{
名字：“南瓜”，
计数：6
},
{
名称：“苹果”，
计数：9
}
],
蛋糕：[
{
名称：“巧克力”，
计数：3
},
{
名称：“泡沫”，
计数：6
},
{
名字：“婚礼”，
计数：9
}
],
冰淇淋：[
{
名称：“巧克力”，
计数：3
},
{
名称：“草莓”，
计数：6
},
{
名称：“薄荷片”，
计数：9
}
],
日期：“2016-01-06T00:00:00”
},
{
馅饼：[
{
名称：“蓝莓”，
计数：2
},
{
名字：“南瓜”，
计数：4
},
{
名称：“苹果”，
计数：6
}
],
蛋糕：[
{
名称：“巧克力”，
计数：2
},
{
名称：“泡沫”，
计数：4
},
{
名字：“婚礼”，
计数：6
}
],
冰淇淋：[
{
名称：“巧克力”，
计数：2
},
{
名称：“草莓”，
计数：4
},
{
名称：“薄荷片”，
计数：6
}
],
日期：“2016-01-07T00:00:00”
},
{
馅饼：[
{
名称：“蓝莓”，
计数：4
},
{
名字：“南瓜”，
计数：8
},
{
名称：“苹果”，
计数：12
}
],
蛋糕：[
{
名称：“巧克力”，
计数：4
},
{
名称：“泡沫”，
计数：8
},
{
名字：“婚礼”，
计数：12
}
],
冰淇淋：[
{
名称：“巧克力”，
计数：4
},
{
名称：“草莓”，
计数：8
},
{
名称：“薄荷片”，
计数：12
}
],
日期：“2016-01-08T00:00:00”
}
];
对于（变量i=0；i

这会将其转换为您想要的格式

var-pieData=[]、cakeData=[]、icecreamData=[]；
var甜点=[
{
馅饼：[
{
名称：“蓝莓”，
计数：3
},
{
名字：“南瓜”，
计数：6
},
{
名称：“苹果”，
计数：9
}
],
蛋糕：[
{
名称：“巧克力”，
计数：3
},
{
名称：“泡沫”，
计数：6
},
{
名字：“婚礼”，
计数：9
}
],
var pieData = [], cakeData = [], icecreamData = [];

var desserts = [
    {
        pies: [
            {
                name: "blueberry",
                count: 3
            },
            {
                name: "pumpkin",
                count: 6
            },
            {
                name: "apple",
                count: 9
            }
        ],
        cakes: [
            {
                name: "chocolate",
                count: 3
            },
            {
            name: "foam",
            count: 6
            },
            {
                name: "wedding",
                count: 9
            }
        ],
        icecream: [
            {
                name: "chocolate",
                count: 3
            },
            {
                name: "strawberry",
                count: 6
            },
            {
                name: "mint-chip",
                count: 9
            }
        ],
        date: "2016-01-06T00:00:00"
    },
    {
        pies: [
            {
                name: "blueberry",
                count: 2
            },
            {
                name: "pumpkin",
                count: 4
            },
            {
                name: "apple",
                count: 6
            }
        ],
        cakes: [
            {
                name: "chocolate",
                count: 2
            },
            {
                name: "foam",
                count: 4
            },
            {
                name: "wedding",
                count: 6
            }
        ],
        icecream: [
            {
                name: "chocolate",
                count: 2
            },
            {
                name: "strawberry",
                count: 4
            },
            {
                name: "mint-chip",
                count: 6
            }
        ],
        date: "2016-01-07T00:00:00"
    },
    {
        pies: [
            {
                name: "blueberry",
                count: 4
            },
            {
                name: "pumpkin",
                count: 8
            },
            {
                name: "apple",
                count: 12
            }
        ],
        cakes: [
            {
                name: "chocolate",
                count: 4
            },
            {
                name: "foam",
                count: 8
            },
            {
                name: "wedding",
                count: 12
            }
        ],
        icecream: [
            {
                name: "chocolate",
                count: 4
            },
            {
                name: "strawberry",
                count: 8
            },
            {
                name: "mint-chip",
                count: 12
            }
        ],
        date: "2016-01-08T00:00:00"
    }
];

for(var i = 0; i < desserts.length; i++) {
    var d = desserts[i].date;
  desserts[i].pies.length && save(pieData, desserts[i].pies, d);
  desserts[i].cakes.length && save(cakeData, desserts[i].cakes, d);
  desserts[i].icecream.length && save(icecreamData, desserts[i].icecream, d);
}

function save(destination, items, d) {
    for(var i = 0; i < items.length; i++) {
    var name = items[i].name;
    var count = items[i].count;
    if(destination[name] === undefined) { destination[name] = {name:'',dates:[],counts:[]}; }
    destination[name].name = name;
    destination[name].dates.push(d);
    destination[name].counts.push(count);
  }
}
console.log(pieData);
console.log(cakeData);
console.log(icecreamData);