合并对象数组，并使用相同的键合并对象内部的数组

CodingIsFun33 发表于 Dev

编码IsFun33

所以我有一个称为mergeItems的对象数组，其值如下所示

(7) [{…}, {…}, {…}, {…}, {…}, {…}, {…}]
0:
city: [Array(13)]
miles: [Array(13)]
phone: [Array(13)]
photos: [Array(13)]
prices: [Array(13)]
state: [Array(13)]
titles: [Array(13)]
urls: [Array(13)]
who: [Array(13)]
__proto__: Object
1: {urls: Array(1), titles: Array(1), miles: Array(1), prices: Array(1), photos: Array(1), …}
2: {urls: Array(1), titles: Array(1), miles: Array(1), prices: Array(1), photos: Array(1), …}
3: {urls: Array(1), titles: Array(1), miles: Array(1), prices: Array(1), photos: Array(1), …}
4: {urls: Array(1), titles: Array(1), miles: Array(1), prices: Array(1), photos: Array(1), …}
5: {urls: Array(1), titles: Array(1), miles: Array(1), prices: Array(1), photos: Array(1), …}
6: {urls: Array(1), titles: Array(1), miles: Array(1), prices: Array(1), photos: Array(1), …}
7:
city: [Array(0)]
miles: [Array(0)]
phone: [Array(0)]
photos: [Array(0)]
prices: [Array(0)]
state: [Array(0)]
titles: [Array(0)]
urls: [Array(0)]
who: [Array(0)]
__proto__: Object
length: 8
__proto__: Array(0)

它在数组内部有对象，然后每个对象内部都有相同的键。我正在尝试将所有7个数组合并在一起，然后还合并所有城市，英里等键以及其中的数组。

我试着做


let newData = mergeItems.join();
setState({mainItems: newData});

但由于那似乎只合并了数组，对我没有好处。想知道是否有人可以向我指出如何处理该问题的正确方向。非常感谢=]

我当前的mergeItems值是：

(7) [{…}, {…}, {…}, {…}, {…}, {…}, {…}]
0: {urls: Array(1), titles: Array(1), miles: Array(1), prices: Array(1), photos: Array(1), …}
1: {urls: Array(1), titles: Array(1), miles: Array(1), prices: Array(1), photos: Array(1), …}
2: {urls: Array(1), titles: Array(1), miles: Array(1), prices: Array(1), photos: Array(1), …}
3: {urls: Array(1), titles: Array(1), miles: Array(1), prices: Array(1), photos: Array(1), …}
4: {urls: Array(1), titles: Array(1), miles: Array(1), prices: Array(1), photos: Array(1), …}
5: {urls: Array(1), titles: Array(1), miles: Array(1), prices: Array(1), photos: Array(1), …}
6: {urls: Array(1), titles: Array(1), miles: Array(1), prices: Array(1), photos: Array(1), …}
7: {urls: Array(1), titles: Array(1), miles: Array(1), prices: Array(1), photos: Array(1), …}
length: 8
__proto__: Array(0)

我想要的输出看起来像这样

{urls: Array(7), titles: Array(7), miles: Array(7), prices: Array(7), photos: Array(7), …}
city: (7) [Array(120), Array(0), Array(18), Array(57), Array(1), Array(0), Array(13)]
miles: (7) [Array(120), Array(0), Array(18), Array(57), Array(1), Array(0), Array(13)]
phone: (7) [Array(120), Array(0), Array(18), Array(57), Array(1), Array(0), Array(13)]
photos: (7) [Array(120), Array(0), Array(18), Array(57), Array(1), Array(0), Array(13)]
prices: (7) [Array(120), Array(0), Array(18), Array(57), Array(1), Array(0), Array(13)]
state: (7) [Array(120), Array(0), Array(18), Array(57), Array(1), Array(0), Array(13)]
titles: (7) [Array(120), Array(0), Array(18), Array(57), Array(1), Array(0), Array(13)]
urls: (7) [Array(120), Array(0), Array(18), Array(57), Array(1), Array(0), Array(13)]
who: (7) [Array(120), Array(0), Array(18), Array(57), Array(1), Array(0), Array(13)]
__proto__: Object

杰达兹

看来您想结束一个对象，该对象的值是数组的数组（而不是每个键的组合数组）。在这种情况下，您可以使用以下命令：

const mergeItems = [
    { urls: [1, 2, 3], titles: ['a', 'b', 'c'] },
    { urls: [4, 5, 6], titles: ['d', 'e', 'f'] }
];

let newData = {};
Object.keys(mergeItems[0]).forEach(key => {
    newData[key] = mergeItems.map(item => item[key])
});
console.log(newData);

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