我有一個這樣的物件陣列,我已經從 csv 檔案中讀取并決議了這些物件。
const csvDataObjects = [
{
Battery: 'Battery',
batteryDetailsKey: ['Serial Number', 'Type', 'Part Number'],
batteryDetailsVal: [
'HJ3CA19347410218LJ98 151 QC',
'Extended Range',
'4P94-Q051',
],
Modules: 'Modules',
moduleDetailsKey: ['Serial Number', 'Part Number', 'Cell Count'],
moduleDetailsVal: ['8367532735006109322258160 50', 'LJ98-10C779-A51', '32'],
assetSeparator: 'assetSeparator',
},
{
Battery: 'Battery',
batteryDetailsKey: ['Serial Number', 'Type', 'Part Number'],
batteryDetailsVal: [
'HJ3CA19347410218LJ98 152 QC',
'Extended Range',
'4P94-Q052',
],
Modules: 'Modules',
moduleDetailsKey: ['Serial Number', 'Part Number', 'Cell Count'],
moduleDetailsVal: [
['8367532735006109322258160 51', 'LJ98-10C779-A52', '28'],
['8367532735006109322258161 52', 'LJ98-10C779-A53', '27'],
],
assetSeparator: 'assetSeparator',
},
{
Battery: 'Battery',
batteryDetailsKey: ['Serial Number', 'Type', 'Part Number'],
batteryDetailsVal: [
'HJ3CA19347410218LJ98 153 QC',
'Extended Range',
'4P94-Q053',
],
Modules: 'Modules',
moduleDetailsKey: ['Serial Number', 'Part Number', 'Cell Count'],
moduleDetailsVal: [
['8367532735006109322258162 53', 'LJ98-10C779-A54', '28'],
['8367532735006109322258163 54', 'LJ98-10C779-A55', '27'],
['8367532735006109322258163 56', 'LJ98-10C779-A56', '27'],
],
},
];
我想要做的是將所有相關的兄弟物件屬性組合在一起。所以我想要電池物件中的電池詳細資訊,以及模塊物件中的模塊詳細資訊。所以最終的輸出應該是這樣的:
const desiredCsvDataObjects = [
{
Battery: {
batteryDetailsKey: ['Serial Number', 'Type', 'Part Number'],
batteryDetailsVal: [
'HJ3CA19347410218LJ98 151 QC',
'Extended Range',
'4P94-Q051',
],
},
Modules: {
moduleDetailsKey: ['Serial Number', 'Part Number', 'Cell Count'],
moduleDetailsVal: [
'8367532735006109322258160 50',
'LJ98-10C779-A51',
'32',
],
},
},
{
Battery: {
batteryDetailsKey: ['Serial Number', 'Type', 'Part Number'],
batteryDetailsVal: [
'HJ3CA19347410218LJ98 152 QC',
'Extended Range',
'4P94-Q052',
],
},
Modules: {
moduleDetailsKey: ['Serial Number', 'Part Number', 'Cell Count'],
moduleDetailsVal: [
['8367532735006109322258160 51', 'LJ98-10C779-A52', '28'],
['8367532735006109322258161 52', 'LJ98-10C779-A53', '27'],
],
},
},
{
Battery: {
batteryDetailsKey: ['Serial Number', 'Type', 'Part Number'],
batteryDetailsVal: [
'HJ3CA19347410218LJ98 153 QC',
'Extended Range',
'4P94-Q053',
],
},
Modules: {
moduleDetailsKey: ['Serial Number', 'Part Number', 'Cell Count'],
moduleDetailsVal: [
['8367532735006109322258162 53', 'LJ98-10C779-A54', '28'],
['8367532735006109322258163 54', 'LJ98-10C779-A55', '27'],
['8367532735006109322258163 56', 'LJ98-10C779-A56', '27'],
],
},
},
];
這是我試圖做我想做的丑陋的代碼
let newEmptyArr = [];
let emptyObj = {};
csvDataObjects.forEach(item => {
Object.keys(item).forEach(x => {
if (x === 'Battery') {
emptyObj[x] = {};
}
if (x === 'batteryDetailsKey') {
emptyObj.Battery = {
batteryDetailsKey: item[x],
};
}
if (x === 'batteryDetailsVal') {
emptyObj.Battery = {
batteryDetailsVal: item[x],
};
}
if (x === 'Modules') {
emptyObj[x] = {};
}
if (x === 'moduleDetailsKey') {
emptyObj.Modules = {
moduleDetailsKey: item[x],
};
}
if (x === 'moduleDetailsVal') {
emptyObj.Modules = {
moduleDetailsVal: item[x],
};
}
});
newEmptyArr.push(emptyObj);
});
請幫我修復我丑陋的代碼,或者幫我寫一個漂亮的:)
uj5u.com熱心網友回復:
您可以使用map從舊陣列中獲取新陣列,如下所示:
const desiredCsvDataObjects = csvDataObjects.map((item) => {
const { batteryDetailsKey, batteryDetailsVal, moduleDetailsKey, moduleDetailsVal } = item;
return {
Battery: { batteryDetailsKey, batteryDetailsVal },
Modules: { moduleDetailsKey, moduleDetailsVal },
};
});
我希望它有幫助!
uj5u.com熱心網友回復:
使用Array#map()方法:
const result = csvDataObjects.map(
({
batteryDetailsKey,
batteryDetailsVal,
moduleDetailsKey,
moduleDetailsVal
}) =>
({
Battery: { batteryDetailsKey, batteryDetailsVal },
Modules: { moduleDetailsKey, moduleDetailsVal }
})
);
演示
顯示代碼片段
const data = [
{
Battery: 'Battery',
batteryDetailsKey: ['Serial Number', 'Type', 'Part Number'],
batteryDetailsVal: [
'HJ3CA19347410218LJ98 151 QC',
'Extended Range',
'4P94-Q051',
],
Modules: 'Modules',
moduleDetailsKey: ['Serial Number', 'Part Number', 'Cell Count'],
moduleDetailsVal: ['8367532735006109322258160 50', 'LJ98-10C779-A51', '32'],
assetSeparator: 'assetSeparator',
},
{
Battery: 'Battery',
batteryDetailsKey: ['Serial Number', 'Type', 'Part Number'],
batteryDetailsVal: [
'HJ3CA19347410218LJ98 152 QC',
'Extended Range',
'4P94-Q052',
],
Modules: 'Modules',
moduleDetailsKey: ['Serial Number', 'Part Number', 'Cell Count'],
moduleDetailsVal: [
['8367532735006109322258160 51', 'LJ98-10C779-A52', '28'],
['8367532735006109322258161 52', 'LJ98-10C779-A53', '27'],
],
assetSeparator: 'assetSeparator',
},
{
Battery: 'Battery',
batteryDetailsKey: ['Serial Number', 'Type', 'Part Number'],
batteryDetailsVal: [
'HJ3CA19347410218LJ98 153 QC',
'Extended Range',
'4P94-Q053',
],
Modules: 'Modules',
moduleDetailsKey: ['Serial Number', 'Part Number', 'Cell Count'],
moduleDetailsVal: [
['8367532735006109322258162 53', 'LJ98-10C779-A54', '28'],
['8367532735006109322258163 54', 'LJ98-10C779-A55', '27'],
['8367532735006109322258163 56', 'LJ98-10C779-A56', '27'],
],
},
];
const result = data.map(({batteryDetailsKey,batteryDetailsVal,moduleDetailsKey,moduleDetailsVal}) =>
({Battery:{batteryDetailsKey,batteryDetailsVal},Modules:{moduleDetailsKey,moduleDetailsVal}})
);
console.log( result );
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標籤:javascript 数组 目的 ecmascript-6 迭代
