Which of the following statements change the background color of id1 element to yellow?

JSON.encode function converts any ___ into a JSON string.

Assume that c1 element is the child of p1 element, how many times is the mouseenter event fired if the mouse moves from outside to p1 element, then over the c1 element?

What is the valid direction of Fx.Slide?

Consider the following code snippet: var arr1 = {a1: 8, a2: 7}; var arr2 = {a3: 6, a4: 5}; var arr3 = {a1: 4, a3: 3}; var arr4 = $merge(arr1, arr2, arr3); Which of the following is the value of arr4?

The maximum number of arguments of onSuccess event of Request.HTML is ___.

By default, the class Tips use the element's ___ to display tooltip.

What is the result of- alert($defined('«body»'));?

What does Swiff class do?

Consider the following code snippet: var rq1 = new Request('request1'}); var rq2 = new Request('request2'); var rq3 = new Request('request3'); var group = new Group(rq1, rq2, rq3); group.addEvent('onComplete', function(){ alert('Finished'); }); rq1.request(); rq2.request(); rq3.request(); When will the alert box be displayed?

scrollTo(x, y) scrolls the element to the specified coordinated (if the element has an overflow). What is x?