Suppose I want to populate a drop down ajaxly. The population is written like:

1. var $select = $("#target");
2. $.each(datas, function(){
3.     $("<option/>")
4.         .val(thia.value).html(this.name)
5.         .appendTo($select)
6.         .data('srcData', this);
7. });

But the speed is considerably slow when the datas is large. I know that I can use just string concatenation and html() finally to speed it up but what can I do with the data()?