How to get the difference between two arrays of objects in JavaScript

Question

I have two result sets like this:

// Result 1
[
    { value: \"0\", display: \"Jamsheer\" },
    { value: \"1\", display: \"Muhammed\" },
    { value: \"2\",         


        

Answer 1

Most of answers here are rather complex, but isn't logic behind this quite simple?

1. check which array is longer and provide it as first parameter (if length is equal, parameters order doesnt matter)
2. Iterate over array1.
3. For current iteration element of array1 check if it is present in array2
4. If it is NOT present, than
5. Push it to 'difference' array

const getArraysDifference = (longerArray, array2) => {
  const difference = [];

  longerArray.forEach(el1 => {      /*1*/
    el1IsPresentInArr2 = array2.some(el2 => el2.value === el1.value); /*2*/

    if (!el1IsPresentInArr2) { /*3*/
      difference.push(el1);    /*4*/
    }
  });

  return difference;
}

O(n^2) complexity.