Validate (Check) HTML Select option DropDownList using JavaScript and jQuery

JavaScript :

Select List:

<select id="ddlList">

    <option value=""></option>

    <option value="1">List 1</option>

    <option value="2">List 2</option>

    <option value="3">List 3</option>

</select>

<input type="submit" value="Validate" onclick="return Validate()" />

<script type="text/javascript">

    function Validate() {

        var ddlList= document.getElementById("ddlList");

        if (ddlList.value == "") {

            //If the "Please Select" option is selected display error.

            alert("Please select an option!");

            return false;

        }

        return true;

    }

</script>

jQuery :

Select List:

<select id="ddlList">

    <option value=""></option>

    <option value="1">List 1</option>

    <option value="2">List 2</option>

    <option value="3">List 3</option>

</select>

<input type="submit" id="btnSubmit" value="Validate" />

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>

<script type="text/javascript">

    $(function () {

        $("#btnSubmit").click(function () {

            var ddlList= $("#ddlList");

            if (ddlList.val() == "") {

                //If the "Please Select" option is selected display error.

                alert("Please select an option!");

                return false;

            }

            return true;

        });

    });

</script>

Validate (Check) HTML Select option  DropDownList using JavaScript and jQuery