Which of the following functions 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?

The callback function in options of Ajax.Autocomplete() is called ___ the request is actually made.

___ extends event with all of the methods contained in Event.Methods.

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?

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

Consider the following code snippet: new Effect.Scale('id1', arg2); Which attribute(s) is id1 element scaled to?