How check if body has a specific class with JavaScript?

Question

How can I check if body has specific class? This is my case:

Answer 1

function hasClass(ele,cls) {
     return ele.className.match(new RegExp('(\\s|^)'+cls+'(\\s|$)'));
}

if(hasClass(document.getElementById("test"), "test")){//do something};

maybe this helps you :-)

With the use of jQuery it would be easier and less code but nevermind !