Answers for "jquery select where option value == this"

select option value jquery

$("select.country").change(function(){
  var selectedCountry = $(this).children("option:selected").val();
  alert("You have selected the country - " + selectedCountry);
});

select and select based on value in jquery

$('.id_100 option')
     .removeAttr('selected')
     .filter('[value=val1]')
         .attr('selected', true)