$(function () { $("#btnSubmit").click(function () { $("#btnClass").removeClass("btnDiv") ... ... <看更多>

Because of that, it shouldn't also add that much code to jQuery. Accepting classes will align us more with the classList standard and aligning ... ... <看更多>

I know you tagged this jQuery, but I believe that loading in jQuery for this seems like a lot of processing for little benefit, ... ... <看更多>