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// Use Gists to store code you would like to remember later on | |
console.log(window); // log the "window" object to the console |
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class Group | |
module Error | |
class Standard < StandardError; end | |
class AlreadyAMember < Standard; end | |
class NotPermittedToJoin < Standard; end | |
end | |
def join user | |
raise Error::NotPermittedToJoin unless self.permitted?(user) | |
raise Error::AlreadyAMember if self.member?(user) |