How to Sort a Multidimensional Array by Multiple Columns in JavaScript?

Sorting an Array by Multiple Columns in JavaScript

Sorting a multidimensional array based on multiple columns requires a customized sorting function. For a primary array consisting of "publicationIDownderID", the goal is to sort first by owner_name and then by publication_name.

The existing sort function provided, "mysortfunction", is limited to sorting solely by owner_name. To address this limitation, the function must be modified to consider both owner_name and publication_name:

<code class="javascript">function mysortfunction(a, b) {

  var o1 = a[3].toLowerCase();
  var o2 = b[3].toLowerCase();

  var p1 = a[1].toLowerCase();
  var p2 = b[1].toLowerCase();

  if (o1 < o2) return -1;
  if (o1 > o2) return 1;
  if (p1 < p2) return -1;
  if (p1 > p2) return 1;
  return 0;
}</code>

This modified function now prioritizes sorting by owner_name. If owner names are identical, it proceeds to use publication_name as the tiebreaker for sorting.

The updated "mysortfunction" can now be used in conjunction with Array.sort() to achieve the desired multi-column sort:

<code class="javascript">array.sort(mysortfunction);</code>

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