I would like to use JQuery.UI.Autocomplete component in my module for Magento 2. Also, I am using KO.js for the user interface of my application. So, I have added a custom binding for KO:

], function (ko, $) {
'use strict';

ko.bindingHandlers.autoComplete = {

    init: function (element, valueAccessor) {
        var settings = valueAccessor();
        var selectedOption = settings.selected;
        var options = settings.options();
        var updateElementValueWithLabel = function (event, ui) {
            if(typeof ui.item !== "undefined") {

            source: options,
            select: function (event, ui) {
                updateElementValueWithLabel(event, ui);
            focus: function (event, ui) {
                updateElementValueWithLabel(event, ui);
            change: function (event, ui) {
                updateElementValueWithLabel(event, ui);

I've added the following code in my html template:

<div class="suggestions">
<input id="suggestion_box" type="text" data-bind="autoComplete: { selected: $data.productSuggestions.selectedSuggestion, options: $data.productSuggestions.suggestions }" />

It looks good, but it doesn't work. I've got a error message in the browser console. I debugged it and as it turned out, the reason of the issue is in the following lines(they start from the 6819 line) of jquery-ui.js library:

this.menu = $( "<ul>" )
            .addClass( "ui-autocomplete ui-front" )
            .appendTo( this._appendTo() )
                // disable ARIA support, the live region takes care of that
                role: null
            .data( "ui-menu" );

The this.menu field is undefined, because of invoking data( "ui-menu" ) method. Methods that invoke before data() one are returns their results.

It seems like I've inited JQuery.UI.Autocomplete in a wrong way, but all examples of configuring are quite simple and I'm not sure what have I done wrong.

Any ideas?

2 Answers 2


jQuery ui menu extended in magento core library lib/web/mage/menu.js as mage.menu. jQuery generate widgetName for any component

name = name.split( "." )[ 1 ];
fullName = namespace + "-" + name;

Widget name used as attribute name for storage widget instance in widget DOM elements.

$.data( element, this.widgetName, this );

After extending by magento core widget name changed from ui-menu to mage-menu and element.data("ui-menu") become undefined.

Keep in mind that magento use different jquery-ui versions for frontend and backend and in one from this versions this issue reproduced (in frontend if I remember correctly)

You can use mixin as workaround for this issue


var config = {
    config: {
        mixins: {
            'mage/menu': {
                'Vendor_Module/js/lib/mage/menu-mixin': true


], function ($) {
    'use strict';

    return function (data) {

        $.widget('mage.menu', data.menu, {
            _create: function () {
                $(this.element).data('ui-menu', this);

        data.menu = $.mage.menu;

        return data;
  • I have tried it. but still not working. Any idea?
    – vinothavn
    Commented Jun 14, 2017 at 9:13
  • its not working Commented Jan 29, 2018 at 14:40
  • 1
    2 things need to be change for it to work from the above answer (At least for Magento 2.3.1). 1. File name require-config.js must be requirejs-config.js. 2. $.widget('mage.menu', data.menu, must be $.widget('mage.menu', $.ui.menu, {
    – Thanu
    Commented Jul 25, 2019 at 1:11
  • 1
    You just saved my day! Thanks :) Commented May 13, 2020 at 12:11

The small issue needs to be corrected in the above accepted answer

Please change

require-config.js to requirejs-config.js
  • @max You answer worked for me but you need to change require-config.js to requirejs-config.js Commented Jan 2, 2019 at 2:46

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