Merge two sorted arrays into one

[RazvanBugoi]

https://www.codewars.com/kata/merge-two-sorted-arrays-into-one/train/javascript

[RazvanBugoi]

function mergeArrays(arr1, arr2) {
  if (arr1.length == 0 && arr2.length == 0) {
    return [];
  } else {
     return Array.from(new Set(arr1.concat(arr2))).sort((a,b) => a - b);   
    }
}

[RazvanBugoi]

function mergeArrays(arr1, arr2) {
     return Array.from(new Set(arr1.concat(arr2))).sort((a,b) => a - b);   
}

[RazvanBugoi]

function mergeArrays(arr1, arr2) {
     return [...new Set([...arr1, ...arr2].sort((a,b) => a - b))];   
}