How to add “selected” in option attribute using Javascript or jQuery?

Question

Below is code for select option and generate using php from database and i try to add selected=\"selected\" to value=\"4\" using jQuery or any javascri

Answer 1

As of jQuery 1.6 "To retrieve and change DOM properties such as the checked, selected, or disabled state of form elements, use the .prop() method."

$("#countryselect option[value=4]").prop("selected", "selected")