Issues with transforming array data - arrays

Question

I'm trying to transform the following JSON array data structure -
From
[
{
"date": "2019-01-01",
"marks": [
{
"quantity": {
"shoes": 1,
"belt": 2,
"socks": 3
}
}
]
},
{
"date": "2019-01-02",
"marks": [
{
"quantity": {
"shoes": 4,
"belt": 5,
"socks": 6
}
}
]
}
]
To
rows: [
{
values: [ '2019-01-01', 1, 2, 3]
},
{
values: [ '2019-01-02', 4, 5, 6]
}
]
The code that I was able to try so far is this -
function myFunction() {
var response = [
{
"date": "2019-01-01",
"marks": [
{
"quantity": {
"shoes": 1,
"belt": 2,
"socks": 3
}
}
]
},
{
"date": "2019-01-02",
"marks": [
{
"quantity": {
"shoes": 4,
"belt": 5,
"socks": 6
}
}
]
}
];
var transform = response.map(function(dailyMarks) {
var row = [];
Object.keys(response).asArray().forEach(function (field) {
switch (field) {
case 'shoes':
return row.push(dailyMarks.shoes);
case 'belt':
return row.push(dailyMarks.belt);
case 'socks':
return row.push(dailyMarks.socks);
case 'date':
return row.push(dailyMarks.date);
default:
return row.push('');
}
});
return { values: row };
});
Logger.log(transform);
}
However, I'm running into this error -
TypeError: Cannot find function asArray in object 1,2. (line XX, file "Code")
Pretty sure I'm doing something wrong but have not been able to figure out where.
Objective is simply to transform the aforementioned data structure - approach doesn't really matter.
Any help would be highly appreciated! Thanks.

Answer 1

In ES5,
var arr1 = [
{
date: '2019-01-01',
marks: [
{
quantity: {
shoes: 1,
belt: 2,
socks: 3,
},
},
],
},
{
date: '2019-01-02',
marks: [
{
quantity: {
shoes: 4,
belt: 5,
socks: 6,
},
},
],
},
];
var out = [];
arr1.forEach(function(obj) {
obj.marks.forEach(function(mark) {
out.push({
values: [obj.date].concat(
Object.keys(mark.quantity).map(function(key) {
return mark.quantity[key];
})
),
});
});
});
console.log({ rows: out });

Answer 2

You could take an array of keys for the order and flatmap the marks array.
var data = [{ date: "2019-01-01", marks: [{ quantity: { shoes: 1, belt: 2, socks: 3 } }] }, { date: "2019-01-02", marks: [{ quantity: { shoes: 4, belt: 5, socks: 6 } }] }],
keys = ['shoes', 'belt', 'socks'],
rows = data.map(({ date, marks }) =>
({ values: [date, ...marks.flatMap(({ quantity }) => keys.map(k => quantity[k]))] })),
result = { rows };
console.log(result);
.as-console-wrapper { max-height: 100% !important; top: 0; }

Answer 3

let x = products.map(p=>{
return p.marks.reduce((t,m)=>{
t.push({ values: [p.date, ...Object.entries(m.quantity).map(([key, value]) => value)]})
return t;
},[])
}
).flat(2)
console.log(x)

Answer 4

var list=[{"date":"2019-01-01","marks":[{"quantity":{"shoes":1,"belt":2,"socks":3}}]},{"date":"2019-01-02","marks":[{"quantity":{"shoes":4,"belt":5,"socks":6}}]}];
let result = list.map(( {date, marks} ) => { return {value: [date, ...Object.values(marks[0].quantity)]};});
let wrap = {rows: result};
console.log(wrap);