Get selected value of a dropdowns item using jQuery

Mistake producing Gemini contented Question & Answer :

However tin I acquire the chosen worth of a dropdown container utilizing jQuery?
I tried utilizing

var worth = $('#dropDownId').val(); 

and

var worth = $('choice#dropDownId action:chosen').val(); 

however some instrument an bare drawstring.

For azygous choice dom parts, to acquire the presently chosen worth:

$('#dropDownId').val(); 

To acquire the presently chosen matter:

$('#dropDownId :chosen').matter();