Create nested object from list of objects

November 15, 2023

Is it possible to parse through this list and create a new nested object for every sensor after "RECORD".

{
    "TIMESTAMP": "2022-10-21 13:55:00",
    "RECORD": "0",
    "Sensor1": "1.654",
    "Sensor2": "1.176",
    "Sensor3": "0.706"
}

Result:

{
    "Sensor1": {
        "TIMESTAMP": "2022-08-21 13:55:00",
        "Value": "1.654"
    },
    "Sensor2": {
        "TIMESTAMP": "2022-08-21 13:55:00",
        "Value": "1.176"
    },
    "Sensor3": {
        "TIMESTAMP": "2022-08-21 13:55:00",
        "Value": "0.706"
    }
}

>Solution :

Just loop through the object keys, ignore the TIMESTAMP and RECORD keys, and each other key just create its according object with the required values:

const transform = (input) => {
  return Object.keys(input).reduce((accum, inputKey) => {
    if (inputKey === 'TIMESTAMP' || inputKey === 'RECORD') {
      return accum;
    }

    return {
      ...accum,
      [inputKey]: {
        TIMESTAMP: input.TIMESTAMP,
        Value: input[inputKey]
      } 
    };
  }, {})
}

// Example
const exampleObject = {
  "TIMESTAMP": "2022-10-21 13:55:00",
  "RECORD": "0",
  "Sensor1": "1.654",
  "Sensor2": "1.176",
  "Sensor3": "0.706"
};

console.log(transform(exampleObject));