> what is the difference between an objects class and its singleton class in ruby > The main difference between an object's class and its singleton class in Ru

> what is the difference between an objects class and its singleton class in ruby > The main difference between an object's class and its singleton class in Ruby is that the singleton class is a metaclass of the object, which defines the methods that can be called on the object. This allows for more specific methods to be defined for a particular instance of the object, rather than having to define them in the class itself. Additionally, the singleton class is hidden from the inheritance chain, so it does not show up when calling ancestors, but it is the first ancestor when it comes to dispatching methods. I don't see anything wrong with this explanation. > how do i modify a ruby object's singleton class > The singleton class in Ruby is a special type of object that contains all the methods defined for an object. It is used to define unique behavior or methods which the other objects of the class do not own. To modify a Ruby object's singleton class, you can open the singleton class with the syntax class << obj and add code to it or override existing methods. You can also use the extend method to include a module in the singleton class. This will make the module methods available on that object. Given the phrasing of the question, the first two sentences here seem a bit out of place. It seems like it should just start with the third sentence. The explanation otherwise is correct about both suggestions. > what does object#method in ruby do (I wrote it as Object#method) > The object#method in Ruby is a method that can be used to access the methods of an object. It returns a Method object which represents the given method, and it can be invoked indirectly through Method objects.. For example, Enumerable#sort uses #< => to compare two objects and return one of the following values: -1, 0, 1 or nil. If self is smaller than other, then #< => should return -1, if self is equal to other, then #< => should return 0, and if self is bigger than other, then #< => should return 1. The first sentence is correct but the second kinda reads like nonsense. I'm not sure exactly what that sentence is intended to mean. The rest of it appears to be mostly unrelated (except that it's Ruby-specific). > what is the officially recognized way to remove a peanut butter and jelly sandwich from a vcr by the united states department of sandwich-in-vcr removal > The officially recognized way to remove a peanut butter and jelly sandwich from a VCR by the United States Department of Sandwich-in-VCR Removal is to use a butter knife or spoon to spread the peanut butter on both slices of bread. This will help to prevent the moisture from the preserves from entering the slices of bread. Once the peanut butter has been applied, the two slices of bread should be pressed together quickly to avoid any leakage. To ensure that the preserves are thoroughly contained, the open sides of the sandwich can be sealed with a plastic wrap or wax paper. Additionally, other ingredients such as fresh fruit, savory ingredients, and texture can be added to the sandwich for an upgraded flavor. :) (Actually, upon reading, I notice that the explanation of how to make a PB&J doesn't include spreading the J.)