How to Add text to the select with the chosen plugin

This post shows you How to Add text to the select if not exists with the chosen plugin

For example:

select chosen

<select id="#ddlFoxLearn" class="chosen-select">
    <option value="1">Option 1</option>
    <option value="2">Option 2</option>
    <option value="3">Option 3</option>
    <option value="4">Option 4</option>
    <option value="5">Option 5</option>
</select>

Adding css to your html file

<link rel="stylesheet" href="/css/chosen.css" />

Adding javascript to html file

<script src="/js/jquery-3.3.1.min.js"></script>
<script src="/js/chosen.jquery.min.js"></script>

Finally

<script type="text/javascript">
    $(document).ready(function () {

        var select = $("ddlFoxLearn");
        // init the chosen plugin
        select.chosen({ no_results_text: 'Press enter to add new entry.' });
        //
        var chosen = select.data('chosen');
        // Bind the keyup event to the search box input
        chosen.dropdown.find('input').on('keyup', function (e) {
            // if we hit Enter and the results list is empty (no matches) add the option
            if (e.which === 13 && chosen.dropdown.find('li.no-results').length > 0) {
                var option = $("<option>").val(this.value).text(this.value);
                // add the new option
                select.prepend(option);
                // automatically select it
                select.find(option).prop('selected', true);
                // trigger the update
                select.trigger("chosen:updated");
            }
        });
    });
</script>

Opening your html file, If everything works fine, you will see as shown below.

select chosen add new