how to sort drop down values

Hi i have drop down value


like <select name="x" id="x">
                <option selected="selected">Sathish</option>
             <option >vijay</option>
              <option >Fox</option>
                 <option >Ajith</option>
 <option >David</option>
</selected>

how to sort this drop down ?
LVL 20
Sathish David  Kumar NArchitectAsked:
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Lee SavidgeCommented:
Well, if you're using jQuery, then you can use one of the multitude of examples on the web. I've used this one here:

http://codepen.io/AlexBezuska/pen/kCwvJ

var sortSelect = function (select, attr, order) {
    if(attr === 'text'){
        if(order === 'asc'){
            $(select).html($(select).children('option').sort(function (x, y) {
                return $(x).text().toUpperCase() < $(y).text().toUpperCase() ? -1 : 1;
            }));
            $(select).get(0).selectedIndex = 0;
            e.preventDefault();
        }// end asc
        if(order === 'desc'){
            $(select).html($(select).children('option').sort(function (y, x) {
                return $(x).text().toUpperCase() < $(y).text().toUpperCase() ? -1 : 1;
            }));
            $(select).get(0).selectedIndex = 0;
            e.preventDefault();
        }// end desc
    }

};

//, attr, order
$(document).ready(function () {

    $('#btnSort').click(function (e) {

        sortSelect('#x', 'text', 'asc');

    }); // event listener click

});

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Guy Hengel [angelIII / a3]Billing EngineerCommented:
unless the data comes from a db query and you build the list dynamically, the only way to sort is to sort them in the html code as such. maybe you could find some javascript to do this "after the page loaded", but I would highly recommend against such a technique...
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Alexandre SimõesManager / Technology SpecialistCommented:
If you use underscorejs you can do it with as little code as this:
var options = $('#x option');
var sorted = _.sortBy(options, function(item){
  return item.innerHTML;
});
$('#x').html(sorted);

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Here's a working demo: http://plnkr.co/edit/re5RKeN2UcRAf7WRuxa5?p=preview

Although if you have the option, get it sorted right out of the database.
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