I have an array of objects like this which i've read and parsed from a csv file.
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'],
],
},
];
What i want to do is combine all the related sibling object properties to be combined together. So i want the Battery details in the Battery object, and the Modules detail in modules object. So the final output should look like this:
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'],
],
},
},
];
Here is my ugly code attempting to do what i want
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);
});
Please help me fix my ugly code, or help me write a nice pretty one :)
CodePudding user response:
You can use map
to get a new array from the old array like this:
const desiredCsvDataObjects = csvDataObjects.map((item) => {
const { batteryDetailsKey, batteryDetailsVal, moduleDetailsKey, moduleDetailsVal } = item;
return {
Battery: { batteryDetailsKey, batteryDetailsVal },
Modules: { moduleDetailsKey, moduleDetailsVal },
};
});
I hope it helpful!
CodePudding user response:
Use Array#map()
method:
const result = csvDataObjects.map(({batteryDetailsKey,batteryDetailsVal,moduleDetailsKey,moduleDetailsVal}) =>
({Battery:{batteryDetailsKey,batteryDetailsVal},Modules:{moduleDetailsKey,moduleDetailsVal}})
);
DEMO
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 );