function current(a, b) {
  var rv = [];
  var idx = 0;
  var len = Math.min(a.length, b.length);
  while (idx < len) {
    rv[idx] = [a[idx], b[idx]];
    idx += 1;
  }
  return rv;
}

function next(a, b) {
  var len = Math.min(a.length, b.length);
  var rv = Array(len);
  var idx = 0;
  while (idx < len) {
    rv[idx] = [a[idx], b[idx]];
    idx += 1;
  }
  return rv;
}

const arr1 = Array(10000).fill(undefined).map((_, i) => i);

const arr2 = Array(10000).fill(undefined).map((_, i) => i);

Teardown JS

Test cases

Test #1

Title *

Async

Code *current(arr1, arr2);

Test #2

Title *

Async

Code *next(arr1, arr2);

Test case details

Preparation Code

Test cases

Test #1

Test #2