javascript - 在 JavaScript 中从数组到复杂的字符串格式

Question

我目前有一个返回这个数组的函数:

var myArray = [
    { Sepal_Width: { Average_Sepal_Width: series => series.average() } },
    { Sepal_Width: { Sum_Sepal_Width: series => series.sum() } },
    { Petal_Length: { Average_Petal_Length: series => series.average() } }
]

但我需要输出看起来像这样:

Sepal_Width: { 
     Average_Sepal_Width: series => series.average(),
     Sum_Sepal_Width: series => series.sum() 
},
Petal_Length: { 
     Average_Petal_Length: series => series.average() 
}

我只是想知道这是否可能，因为我需要考虑到用户向原始数组添加额外的行，例如 { Petal_Length: Sum_Petal_Length: series => series.sum() }} 并让它自动进入 Petal_Length:{}。

Sepal_Width: { 
     Average_Sepal_Width: series => series.average(),
     Sum_Sepal_Width: series => series.sum() 
},
Petal_Length: { 
     Average_Petal_Length: series => series.average() },
     Sum_Petal_Length: series => series.sum() }
}

Answer 1

您可以获得第一个键并将值分配给结果对象中的给定键。

var array = [{ Sepal_Width: { Average_Sepal_Width: series => series.average() } }, { Sepal_Width: { Sum_Sepal_Width: series => series.sum() } }, { Petal_Length: { Average_Petal_Length: series => series.average() } }],
    result = array.reduce((r, o) => {
        Object.entries(o).forEach(([k, v]) => Object.assign(r[k] = r[k] || {}, v));
        return r;
    }, {});

console.log(result);