how to split an array of objects with a single row into multiple rows in javascript

I have the following array with one object:

[{
  "0key1": "a33",
  "0key2": "Aab",
  "0key3": "i",
  "1key1": "e78",
  "1key2": "Vib",
  "1key3": "j",
  "2key1": "c99",
  "2key2": "Aig",
  "2key3": "k"
}]

I would like to split it into three "key": "value" per row as shown below:

[
  {"0key1":"a33","0key2":"Aab","0key3":"i"},
  {"1key1":"e78","1key2":"Vib","1key3":"j"},
  {"2key1":"c99","2key2":"Aig","2key3":"k"}
]

Please help me achieve that.

>Solution :

I would use reduce and a nullish coalescing assigment

const input = [{ 
  "0key1": "a33", "0key2": "Aab", "0key3": "i",
  "1key1": "e78", "1key2": "Vib", "1key3": "j",
  "2key1": "c99",  "2key2": "Aig", "2key3": "k"
}]
const output = Object.entries(input[0]).reduce((acc,cur) => {
  const key = cur[0];
  const [mainIdx,idx] = key.split("key");
  acc[mainIdx] ??= {}; // nullish coalescing assignment
  acc[mainIdx][key]=cur[1];
  return acc;
}
,[])
console.log(output)