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Ruby Ruby Modules Include and Extend Extend

Posted by Jonathan Foster
Jonathan Foster
9,134 Points

Confused about the instances method

I'm having a hard time wrapping my head around pushing to the instances METHOD rather than a variable. It seems like it should be @instances.push(object) (pushing to the array itself) but instead it seems to be calling the push method on the instances method. How is this working?

Muhammad Saif
Muhammad Saif
11,565 Points
Muhammad Saif
Muhammad Saif
11,565 Points

I have the same question too. Is it because when extending module, one cannot use the initialize method to initialize the instance variable @instances and so one have to put it in a method and use the method instead?