Consider the following code snippet: var a = $$("div"); var b = a.filter(".blue"); What is the result of b?

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?

Function.attempt function tries to execute a number of functions. Returns immediately the return value of the first ___ function without executing successive functions, or null.

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?