how to reset the filters in a datatable

To reset custom filters

If you're using custom filtering function as in this example, you need to clear controls involved before filtering and redrawing the table.

$('input.search_events').val('');
$('#todays_table').dataTable().fnDraw();

To reset global search

• jQuery DataTables 1.9+

  Call fnFilter() API method with empty string as a first argument to reset the global search and redraw the table.

  For example:

  $('#example').dataTable().fnFilter('');
  

• jQuery DataTables 1.10

  Call search() API method with empty string as a first argument followed by call to draw() API method to reset the global search and redraw the table.

  For example:

  $('#example').DataTable().search('').draw();
  

For those who's performing a search with column and regex:

$('#example').DataTable().column('').search('').draw();

DataTables 1.10+ new API can achieve the same effect without the requirement for plug-ins using the following chaining:

var table = $('#example').DataTable(); 
table.search('').columns().search('').draw();

If you are using earlier versions of DataTables, you need to include plugin library called fnFilterClear and call:

var table = $('#example').DataTable(); 
table.fnFilterClear();

Please see this DataTables API page for more information and the plugin that needs to be used for earlier versions of DataTable.