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

Just try

$("#countryselect").val('4')
    //OR

$("#countryselect option").val('4')​.attr("selected", true)​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​

Check this FIDDLE