What does $$("a", "b"); return?

Consider the following code snippet: var a = [0, 3, 5].some(function(value) {return value % 3;}); What is the value of a?

What does e1.grab(e2, 'top'); do?

Consider the following code snippet: var a = $arguments(1); alert(a('a','b','c')); What does the alert box display?