The code: var json = transport.responseText.evalJSON(true); will check for what?

There is an object in Prototype that is informed about every Ajax request: Ajax.Responders. Is it possible to register callbacks that will fire on a state of ANY Ajax.Request?

What do you use to add your own custom DOM methods?

Which PrototypeJS method of functions have become a native method of functions?

Class method String#gsub:

Which class serves a purpose of creation an observer on an element that listens for a particular event, that element's descendants?

Which namespace is not typically used directly but mixed in to other namespaces?

What is the value of t at the end of this code snippet? var t = 1; $R(0,100,true).each(function(){ t++; }); console.log(t);

After editing your browser script to work with Prototype extensions, what coding can you add to the end to make it function more solidly?

What object is informed about every AJAX request?

Instance method String#evalJSON():