HTML
<div class="container">
<div class="row">
<h1 class="text-center">Sorting dropdown</h1>
<hr>
<div class="col-sm-6">
<select class='whatever form-control'>
<option value='13'>Glitchop</option>
<option value='9'>Chillstep</option>
<option value='3'>Drum and Bass</option>
<option value='0'>Ambient</option>
<option value='13'>Glitchstep</option>
<option value='-11'>Drone</option>
<option value='10'>Zumba</option>
<option value='23'>Metal</option>
</select>
<button class="btn btn-success" type=button>Sort!</button>
</div>
<div class="col-sm-6">
<h2>Data before:</h2>
<pre id="output1"></pre>
<h2>Data after:</h2>
<pre id="output2"></pre>
</div>
</div>
</div>
JAVASCRIPT
$("document").ready(function(){
$.each($("option"), function(){
$("#output1").append($(this).text()+":"+$(this).val()+"\n");
});
});
$('button').click(function() {
$("#output2").html('');
var options = $('select.whatever option');
var arr = options.map(function(_, o) {
return {
t: $(o).text(),
v: o.value
};
}).get();
arr.sort(function(o1, o2) {
return o1.t > o2.t ? 1 : o1.t < o2.t ? -1 : 0;
});
options.each(function(i, o) {
console.log(i);
o.value = arr[i].v;
$(o).text(arr[i].t);
});
$.each($("option"), function(){
$("#output2").append($(this).text()+":"+$(this).val()+"\n");
});
});
