Check if selected dropdown value is empty using jQuery -

here dropdown in question:

<select name="data" class="autotime" id="eventstarttimemin">     <option value=""></option>     <option value="00">00</option>     <option value="10">10</option>     <option value="20">20</option>     <option value="30">30</option>     <option value="40">40</option>     <option value="50">50</option> </select> 

what want check if current value empty:

if ($("eventstarttimemin").val() === "") {    // ... } 

but not work, though value empty. appreciated.

you forgot # on id selector:

if ($("#eventstarttimemin").val() === "") {     // ... }