jQuery functions

Question

I'm trying to remove a class from a HTML tag along with adding a new one and also doing some other magic.

Right now I just have a procedure style coding going on... which I know there's another way of doing it. Like creating a function within another function? I'm not sure what it's called and sometimes when trying to do it, it never worked so I went down procedure style type but I figured I post on here and maybe someone can explain to me on how jQuery works? Right now I have like

$(this).removeClass("theClass");
$(this).addClass("theClass");
$(this).slideDown();

I think I can do something like

$(this).removeClass("theClass", function(){
  // other goodness?
});

Thanks everyone. Sorry if i don't make sense.

Answer 1

I think what you're looking for is call chaining - since .removeClass returns a jQuery object itself, you can call .addClass directly on the returned object, like so:

$(this).removeClass("classA").addClass("classB").slideDown();

Some animations also take functions called callbacks as arguments; these functions specify actions to take after the animation is complete. For example:

$(this).fadeOut("slow", function() {
    // Callback function - called after fade is done
    alert("fade complete");
});