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Remove an item from DropDownList

The following example demonstrate about how to remove an item from DropDownList.

Source
Preview
index.js
index.html
var sportsData = [
    { Id: 'game1', Game: 'Badminton' },
    { Id: 'game2', Game: 'Football' },
    { Id: 'game3', Game: 'Tennis' }
];
//initiate the DropDownList
var dropDownListObject = new ej.dropdowns.DropDownList({
    // bind the sports Data to datasource property
    dataSource: sportsData,
    // maps the appropriate column to fields property
    fields: { text: 'Game', value: 'Id' },
    //set the placeholder to DropDownList input
    placeholder: "Select a game"
});
//render the componen
dropDownListObject.appendTo('#ddlelement');
 
document.getElementById('first').onclick = () => {
    // create DropDownList object
    var obj = document.getElementById('ddlelement');
    if (obj.ej2_instances[0].list) {
        // Remove the selected value if 0th index selected
        if (dropDownListObject.index === 0) {
            dropDownListObject.value = null;
            dropDownListObject.dataBind();
        }
        // remove first item in list
        (obj.ej2_instances[0].list.querySelectorAll('li')[0]).remove();
        if (!obj.ej2_instances[0].list.querySelectorAll('li')[0]) {
            dropDownListObject.dataSource = [];
            // enable the nodata template when no data source is empty.
            obj.ej2_instances[0].list.classList.add('e-nodata');
        }
    }
    else {
        // remove first item in list
        dropDownListObject.dataSource.splice(0, 1);
    }
};
<!DOCTYPE html><html lang="en"><head>
    <title>Essential JS 2 DropDownList</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta name="description" content="Typescript UI Controls">
    <meta name="author" content="Syncfusion">
    <link href="styles.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/ej2-base/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/ej2-inputs/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/ej2-dropdowns/styles/material.css" rel="stylesheet">
    
    
<script src="https://cdn.syncfusion.com/ej2/dist/ej2.min.js" type="text/javascript"></script>
</head>
<body>
    
    <div id="container" style="margin:0 auto; width:250px;">
        <br>
        <input type="text" id="ddlelement">
        <div style="padding: 50px 0">
          <button id="first" class="e-control e-btn"> Remove 0th item</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>