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Customize menu using events in JavaScript (ES5) Menu Bar control

The Menu provides a set of events to enable users to customize it.

The available events are beforeOpen, beforeClose, onClose, onOpen, and select.

Source
Preview
index.js
index.html
styles.css
ej.base.enableRipple(true);

//Menu items definition
var menuItems = [
    {
        text: 'Events',
        items: [
            { text: 'Conferences' },
            { text: 'Music' },
            { text: 'Workshops' }
        ]
    },
    {
        text: 'Movies',
        items: [
            { text: 'Now Showing' },
            { text: 'Coming Soon' }
        ]
    },
    {
        text: 'Directory',
        items: [
            { text: 'Media Gallery' },
            { text: 'Newsletters' }
        ]
    },
    {
        text: 'Queries',
        items: [
            { text: 'Our Policy' },
            { text: 'Site Map' }
        ]
    },
    { text: 'Services' }
];

// Initialize Menu component.
var menuObj = new ej.navigations.Menu({
    items: menuItems,
    beforeOpen: function (args) {
        updateEventLog(args);
    },
    beforeClose: function (args) {
        updateEventLog(args);
    },
    onClose: function (args) {
        updateEventLog(args);
    },
    onOpen: function (args) {
        updateEventLog(args);
    },
    select: function (args) {
        updateEventLog(args);
    },
    beforeItemRender: function (args) {
        updateEventLog(args);
    }
}, '#menu');

var clear = new ej.buttons.Button({ cssClass: 'e-small'}, '#clear');

clear.element.onclick = function () {
    var propertyElem = document.getElementById('propertyTable');
    propertyElem.getElementsByTagName('td')[0].innerHTML = '';
}

function updateEventLog (args) {
    var propertyElem = document.getElementById('propertyTable');
    propertyElem.getElementsByTagName('td')[0].insertAdjacentHTML('beforeend', args.name + ' Event triggered. <br />');
}
<!DOCTYPE html><html lang="en"><head>
    <title>Essential JS 2</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
    <meta name="description" content="Essential JS 2">
    <meta name="author" content="Syncfusion">
    <link href="//cdn.syncfusion.com/ej2/ej2-base/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/ej2-popups/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/ej2-navigations/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/ej2-buttons/styles/material.css" rel="stylesheet">

    <!--style reference from app-->
    <link href="styles.css" rel="stylesheet">

    <!--system js reference and configuration-->
    
    
<script src="https://cdn.syncfusion.com/ej2/dist/ej2.min.js" type="text/javascript"></script>
</head>
<body>
    
    <div id="container">
        <div class="control-section">
            <div class="menu-section">
                <ul id="menu"></ul>
            </div>
            <div class="property-section">
                <table id="propertyTable" title="Event trace">
                    <tbody>
                        <tr><th>Event trace:-</th>
                        </tr><tr>
                            <td></td>
                        </tr>
                    </tbody>
                </table>
            </div>
            <button id="clear">Clear</button>
        </div>
    </div>



<script>
var ele = document.getElementById('container');
if(ele) {
    ele.style.visibility = "visible";
 }   
        </script>
<script src="index.js" type="text/javascript"></script>
</body></html>
html, body, .control-section {
    height: 95%;
}

.menu-section {
    margin-top: 100px;
    text-align: center;        
    float: left;
}

.property-section {
    overflow: auto;
    width: 40%;
    height: 330px;
    float: right;
    font-family: monospace;
}

.property-section th {
    text-align: left;
}

#clear {
    float: right;
    clear: both;
}