I would normally use:
if ($("#parkState").val() == "0") {
alert("Please select a state.");
}
<option>Select a city</option>
<option>city1</option>
<option>city2</option>
<option>city3</option>
But I have no values here. How can I test my if statement against “Select a city”?
You can use
$('#parkState option:selected').text()to get theSelect a city