Question

How to get unique values from two arrays in TypeScript

Answer 1

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

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

const result: number[] = get_unique_values(arr1, arr2);
console.log(result);


  
  
/*
run:
  
[1, 2, 5, 7, 12, 90, 96] 
  
*/

 

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