When is the Ddom:loaded event fired?

Which object allows you to monitor Ajax activities?

Which function returns the element that occurred?

What is the result of the following function? function a() {    var x = 10;  return x.toPaddedString(4); }

If you want to make an Ajax request using xml instead of the regular URL-encoded format, which option parameter do you have to change?

Consider the following code snippet: new Effect.Scale(agr1, arg2); What is arg2 parameter?

Consider the following code snippet: Sortable.create('id1'); Assume that nodes which id: id11, id12 are children of id1 and nodes which id: id111, id112 are children of id11. Which of the following elements can be sortable?

What is the difference between the names of native browser events and prototype custom events?

Which method allows you to add a new instance of method to a class after that class has been defined?

What is the result of the following code snippet? [1, 2, 3, 4, 5].map( function(num) { return num * num; } );

Which of the following is/are a valid callback of core effects?