'select all' and 'remove all' with chosen.js

Question

For the select menu plugin chosen.js, is there an established way to add \'select all items in list\' or \'remove all items in list\' feature to a multiple select input? In

Answer 1

Try this code it will work 100%

// Deselect All
$('#my_select_box option:selected').removeAttr('selected');
$('#my_select_box').trigger('chosen:updated');

// Select All
$('#my_select_box option').prop('selected', true);  
$('#my_select_box').trigger('chosen:updated');