Utilities $A and $R create an array and ObjectRange object. What will be their results given the following string; $A($R('a', 'e')) ?

Prototype JS framework with version 1.6.0 defines two additional class properties:

Why is event delegation important in Prototype?

When writing custom DOM methods, what must be placed as the first argument?

Using Element.Layout you can measure elements that are hidden:

Which method that is not available to convert to JSON in Prototype

Element#measure(property) gives:

Lets say you have an array with name myArray. How would you organize a loop?

In the context of Prototype, “safe” means that AJAX will function how?

What solution has Prototype 1.7 introduced to provide a more concise API?

How would you wait for the DOM to be loaded so that you can start manipulating the page with Javascript?