JSFiddle - React, Tailwind, and code Playground

by userdude

HTML

Please select your rating * :
    <select id="myDropdown">
    <option value="">-Please Select-</option>
    <option value="1">One</option>
    <option value="2">Two</option>
    <option value="3">Three</option>
    <option value="4">Four</option>
    <option value="5">Five</option>
    </select>

JavaScript

$('#myDropdown').change(function(){
    mydropdown = $('#myDropdown option:selected');
    if (mydropdown.length == 0 || $(mydropdown).val() == "")
    {
        alert("Please select anyone");
    }
});