将类添加到正文时，将类添加到另一个元素

Question

I am trying to check for when a class is added to the body but my code isn't working, is anyone able to help me?

function checkFordone() {
    if ($("body").hasClass("done")) {
        $("#mainbar").addclass("finished");
    } else {
        setTimeout(checkFordone, 100);
    }
}

jsFiddle

Answer 1

addclass不是函数，请使用addClass！