Find all instance methods of Fixnum that take 2 arguments. : find_all « Reflection « Ruby

1. Ruby
2. Reflection
3. find_all

Find all instance methods of Fixnum that take 2 arguments.

sample = 0
sample.class.find_all { |method_name| sample.method(method_name).arity == 2 }
# => ["instance_variable_set", "between?"]

 

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