Answers for "jquery while has class"

detect if an element has a class jQurey

$("#EL_ID").hasClass("CLASS_NAME");

jquery check if has class

if ($("#about").hasClass("opened")) {
  $("#about").animate({right: "-700px"}, 2000);
}

if element has class jquery

if ($(".mydivclass")[0]){
    // Do something if class exists
} else {
    // Do something if class does not exist
}