Which of the following options is/are valid element(s) of the function-Form.Element.present(element)

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

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

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

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

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?

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

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?

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

Which function returns the element that occurred?

Which object allows you to monitor Ajax activities?