zjmiller questions

• What exactly are the "components" of Rails (ActiveRecord, ActionController, etc.)?
• What do each of these stand for after the "Save file?" prompt: (y, n, !, ., q, C-r, d or C-h)
• How do you run one line of JavaScript at a time in Firebug?
• Why does relatively positioning the body influence absolutely positioned elements?
• Why does window.onload work while document.onload doesn't?
• How do you break out of frames without breaking the browser's back button?
• Why does typeof val === 'object' && val.constructor === Array fail if val created in other frame? [duplicate]
• How do I reset the value of a text input when the page reloads?
• Why are myarray instanceof Array and myarray.constructor === Array both false when myarray is in a frame?
• Given that "arguments" is not a true array, why does Array.prototype.slice.call(arguments) work, but Array.prototype.slice.call(someobject) not work?

zjmiller answers