Discover the perfect method for combining two objects while updating any empty values with a new specified value. Furthermore, in the case where the new value is also

Question

Discover the perfect method for combining two objects while updating any empty values with a new specified value. Furthermore, in the case where the new value is also

My task involves working with an array of objects where each time I select a value, it gets pushed into the array. My goal is to merge two objects that share the same key "code" and remove any empty values.

(4) [{…}, {…}, {…}, {…}]
0: {code: "abc", value: "", access: "A"}
1: {code: "abc", value: "ok", access: ""}
2: {code: "def", value: "xyz", access: ""}
3: {code: "def", value: "", access: "B"}

The desired output should be:
(2) [{…},{…}]
0: { code: "abc", value: "ok", access: "A"}
1: {code: "def", value: "xyz", access: "B"}

I have attempted using the spread operator but it seems to not work as expected. Any suggestions or help would be greatly appreciated.

javascript javascript-objects

Answer 1

Answer №1

If you're looking for a solution, consider using the Object.assign(..) method instead of .reduce(). Here's an alternative approach:

const data = [
  {id: 1, name: "Alice", age: 30},
  {id: 2, name: "Bob", age: 35},
  {id: 1, name: "Charlie", age: 28}
];

const updatedData = data.reduce((acc, current) => {
  const found = acc.find(item => item.id === current.id);
  if (found) {
    Object.assign(found, current);
  } else {
    acc.push(current);
  }
  return acc;
}, []);

console.log(updatedData);

While this code snippet may appear to work with certain inputs, it does not account for all potential scenarios. Be cautious as it overwrites existing values during the merge process.

To address this issue, incorporate additional verification checks within the conditional statements to tailor the merging behavior to your specific requirements.

Answer 2

If you're looking for a solution, consider using the Object.assign(..) method instead of .reduce(). Here's an alternative approach:

const data = [
  {id: 1, name: "Alice", age: 30},
  {id: 2, name: "Bob", age: 35},
  {id: 1, name: "Charlie", age: 28}
];

const updatedData = data.reduce((acc, current) => {
  const found = acc.find(item => item.id === current.id);
  if (found) {
    Object.assign(found, current);
  } else {
    acc.push(current);
  }
  return acc;
}, []);

console.log(updatedData);

While this code snippet may appear to work with certain inputs, it does not account for all potential scenarios. Be cautious as it overwrites existing values during the merge process.

To address this issue, incorporate additional verification checks within the conditional statements to tailor the merging behavior to your specific requirements.

Discover the perfect method for combining two objects while updating any empty values with a new specified value. Furthermore, in the case where the new value is also

Answer №1

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