css selectors - jQuery - get a list of values of an attribute from elements of a class

Question

I have a class .object which has an attribute called level. I want to get a list of all the different values of level on the page so I can select the highest one.

If I do something like:

$(".object").attr("level")

... will that get me a list of values that are the values of the level attribute? I suspect not, but then how do you do something like that?

Note: I don't want to select an HTML object for manipulation as is more common, rather I want to select values of the attribute.

EDIT: In order to get the highest "level" I have done this, but it doesn't seem to work. I will try the other suggested method now.

var highLevel=0;
$.each(".object[level]", function(i, value) {
   if (value>highLevel) {
       highLevel=value;
   }
});

alert(highLevel);

Answer 1

$(".object").attr("level") will just return the attribute of first the first .object element.

This will get you an array of all levels:

var list = $(".object").map(function(){return $(this).attr("level");}).get();