Question

How to get unique values from two arrays in Node.js

Answer 1

function get_unique_values(arr1, arr2) {
  const set1 = new Set(arr1);
  const set2 = new Set(arr2);
  const result = [];

  arr1.forEach(item => {
    if (!set2.has(item)) {
      result.push(item);
    }
  });

  arr2.forEach(item => {
    if (!set1.has(item)) {
      result.push(item);
    }
  });

  result.sort((a, b) => a - b);
  
  return result;
}

const arr1 = [1, 3, 6, 8, 12, 90];
const arr2 = [2, 3, 5, 6, 7, 8, 12, 85, 96];

const result = get_unique_values(arr1, arr2);
console.log(result);



/*
run:

[
   1,  2,  5, 7,
  85, 90, 96
]

*/

 

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