How to clone object with different specific values

Question

I Want to split objects by assessment unit ids.

I have this


{ 
"name": "test",
"description": "test",
"asessment_units[]": ["2", "4", "5","8"]
}

and from this object I want four objects (because I have 4 elements in the assessment unit).

1 st object

{ 
"name": "test",
"description": "test",
"asessment_units[]": ["2"]
}

2nd object

{ 
"name": "test",
"description": "test",
"asessment_units[]": ["4"]
}

3rd object

{ 
"name": "test",
"description": "test",
"asessment_units[]": ["5"]
}

4th object

{ 
"name": "test",
"description": "test",
"asessment_units[]": ["8"]
}

Please add the code you've attempted to your question as a minimal reproducible example. — Andy
– Andy, Commented Apr 27, 2022 at 10:21

Sash Sinha · Accepted Answer · 2022-04-27 10:42:47Z

3

Maybe you could use Array.prototype.map and Object.assign:

const obj = {
  name: "test",
  description: "test",
  "asessment_units[]": ["2", "4", "5", "8"],
};
const splitObjs = obj["asessment_units[]"].map(unit =>
  Object.assign({}, obj, {
    "asessment_units[]": [unit],
  })
);
console.log(splitObjs);

edited Apr 27, 2022 at 10:42

answered Apr 27, 2022 at 10:34

Sash Sinha

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Comments

Pranay Binju · Accepted Answer · 2022-04-27 10:37:12Z

2

You can use Array.prototype.map() on asessment_units[] to achieve the transformation. Spread name and description keys of the object as they are common and insert respective value in an array inside the callback of map.

const obj = { 
  "name": "test",
  "description": "test",
   "asessment_units[]": ["2", "4", "5","8"]


}

 const res = obj['asessment_units[]'].map((val,index)=>{

   return {...obj, ['asessment_units[]'] : [val]}
})

answered Apr 27, 2022 at 10:37

Pranay Binju

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