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Ruby

Alphonse Cuccurullo
Alphonse Cuccurullo
2,513 Points
Posted by Alphonse Cuccurullo
Alphonse Cuccurullo
2,513 Points

Can someone help me with class variables?

class Message 
    @@message_sent = 0
    def initialize(from, to)
        @from = from
        @to = to
        @@message_sent += 1

    end
end

It isnt working.

1 Answer

Clayton Perszyk
MOD
Clayton Perszyk
Treehouse Moderator 48,850 Points
Clayton Perszyk
Clayton Perszyk
Treehouse Moderator 48,850 Points

Alphonse,

your code is fine; but you might want to add a class method to access that class variable.

Here's an example:

class Message 
    @@message_sent = 0
    def initialize(from, to)
        @from = from
        @to = to
        @@message_sent += 1
    end

    #class getter method for @@message_sent
    def self.message_sent
        @@message_sent
    end
end

Message.new("here", "eternity")
Message.new("me", "you")
Message.new("you", "me")

puts "#{Message.message_sent} messages sent" # This will print 3, as 3 instances of Message have been created

Best,

Clayton