Convert an array of array of objects to array of objects?

Question

Current Invalid Input

boxlist = [
 {
   boxId:'94sdsd65cc9'
   boxSize:'Small'
   boxType:'box'
   items:(2) [Array(12), Array(2)]
 }
]

Expanded above Items array of array sample:

items : [
  [{id: 1, name: "item1", write: true}],
  [{id: 3, name: "item3", write: true}]
]

Expected Output

boxlist = [
 {
   boxId:'94sdsd65cc9'
   boxSize:'Small'
   boxType:'box'
   items:(2) [{.12.}, {.2.}]
 }
]

Required Items array of objects sample:

items = [
  {id: 1, name: "item1", write: true},
  {id: 3, name: "item3", write: true}
]

Tried to use

in your example of current input, on one hand u have items[0] being Array(12) but in your "expanded form", you have items[0] as Array(1), can you please clear that up for me? which one is it really? — The Bomb Squad
– The Bomb Squad, Commented Mar 18, 2021 at 19:59
"Tried to use [...] items.flat() , but didn't work, it had no impact on my array of array" I cannot reproduce it — VLAZ
– VLAZ, Commented Mar 18, 2021 at 19:59
[ [{a:1}] , [{b:2}] ].flat() does turn to [{a:1}, {b:2}] so could you please show a clearer picture of what's actually going on? — The Bomb Squad
– The Bomb Squad, Commented Mar 18, 2021 at 20:02

Praveen Jaya Kumar Ramesh · Accepted Answer · 2021-03-18 20:07:29Z

1

boxlist.map((list) => {
    list.items = list.items.flat() // flattens the array of array
    return list
})

answered Mar 18, 2021 at 20:07

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1 Comment

This doesn't maintain the structure of [ {12 objects}, {2 objects} ] rather returns [ {14 objects} ]