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How to Sort a Multidimensional Array by Multiple Columns in JavaScript?
How to Sort a Multidimensional Array by Multiple Columns in JavaScript?
Oct 29, 2024 pm 08:21 PM
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>
The above is the detailed content of How to Sort a Multidimensional Array by Multiple Columns in JavaScript?. For more information, please follow other related articles on the PHP Chinese website!
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