When using Element#on as opposed to Element#observe, what is different about its return value?

-background-color'.camelize(); returns:

How would you loop over an array of elements (myArray) and set the value of each element to '1'?

Is there any utility to split a string into Array?

Here is a snapcode: ' bmw, bugatti & luxury'.scan(/\w+/, alert); How many alert dialongs will you see after executing given snapcode?

Which class serves the purpose of sophisticated string interpolation?

If you wanted to extend all elements with an additional method to do 'foo' and you have already created the method foo() how would you add it?

Internet Explorer doesn't allow the extension of what onto NodeList.prototype?

To make a contribution of patches or tests to prototypejs.org, you may NOT need:

Instance method String#extractScripts():

If you want to create a hash, which utility would you use?