You want to implement the behavior of an effect like slideDown() manually using animate(). What is one critical point you need to remember?

What is the main difference between the contents() and children() functions?

If you JavaScript project involves a lot of DOM manipulation, but no AJAX or animation, which version of jQuery should you use?

What is a particular performance concern when dealing with event handlers, and how can you cope with it?

$(function(){ //executable code }); The executable code will be run:

What is the equivalent of the following code? $('div').click(function {alert(1);});

What does this code do: $('#id1').animate({width:'250px'}, 'slow').animate({height:'250px'}, 'fast');

How is jQuery licensed?