Let's say I have below object :
var obj = {
a-0-first : 'value1',
a-0-second : 'value2',
a-1-first: 'value3',
a-1-second: 'value4'
}
I want this :
a : [
{
fisrt : 'value1',
second: 'value2'
},
{
fisrt : 'value3',
second: 'value4'
}
]
How can I convert the object in JavaScript?
const transform = (obj) =>
Object.entries(obj)
.reduce((acc, [k,v], _, __, {k1, k2, k3} = parseK(k)) =>
((acc[k1] || (acc[k1] = [])),
(acc[k1][k2] || (acc[k1][k2] = {})),
(acc[k1][k2][k3] = v), acc), {})
const parseK = (k) =>
({groups: {k1, k2, k3}} = /^(?<k1>[^\-]*)-(?<k2>[^\-]*)-(?<k3>[^\-]*)/.exec(k), { k1, k2, k3 })
var obj = {
"a-0-first": 'value1',
"a-0-second": 'value2',
"a-1-first": 'value3',
"a-1-second": 'value4',
"b-0-first": 'value5',
}
console.log(transform(obj))