Question

After 3 seconds… the alert prompted does not show up. What am I doing wrong?

$(function() {
    $("#test").live("click",function() { 
         $("#test2").delay(3000, function({
            alert('Hello!');
         }) );
        });
    });

Answer 1

.delay() doesn’t accept a callback. Use setTimeout.

$(function() {
    $("#test").live("click",function() { 
         setTimeout(function() { alert('Hello!'); }, 3000);
    });
});

I could show you how you could technically make it work with .delay(), but given your example, it just wouldn’t be appropriate.