https://www.campusmarenostrum.es/o/um-lr-genericov2-um-theme/js/ve…&languageId=en_US&t=1789981552000

1/**
2 * When searching a table with accented characters, it can be frustrating to have
3 * an input such as _Zurich_ not match _Zürich_ in the table (`u !== ü`). This
4 * type based search plug-in replaces the built-in string formatter in
5 * DataTables with a function that will replace the accented characters
6 * with their unaccented counterparts for fast and easy filtering.
7 * 
8 * Note that this plug-in uses the Javascript I18n API that was introduced in
9 * ES6. For older browser's this plug-in will have no effect.
10 *
11 *  @summary Replace accented characters with unaccented counterparts
12 *  @name Accent neutralise
13 *  @author Allan Jardine
14 *
15 *  @example
16 *    $(document).ready(function() {
17 *        $('#example').dataTable();
18 *    } );
19 */
20
21(function(){
22
23function removeAccents ( data ) {
24    if ( data.normalize ) {
25        // Use I18n API if avaiable to split characters and accents, then remove
26        // the accents wholesale. Note that we use the original data as well as
27        // the new to allow for searching of either form.
28        return data +' '+ data
29            .normalize('NFD')
30            .replace(/[\u0300-\u036f]/g, '');
31    }
32
33    return data;
34}
35
36var searchType = jQuery.fn.DataTable.ext.type.search;
37
38searchType.string = function ( data ) {
39    return ! data ?
40        '' :
41        typeof data === 'string' ?
42            removeAccents( data ) :
43            data;
44};
45
46searchType.html = function ( data ) {
47    return ! data ?
48        '' :
49        typeof data === 'string' ?
50            removeAccents( data.replace( /<.*?>/g, '' ) ) :
51            data;
52};
53
54}());