Essential Books

Changing an existing ruby method

suggest change 
puts "Hello readers".reverse # => "sredaer olleH"

class String
  def reverse
    "Hell riders"
  end
end

puts "Hello readers".reverse # => "Hell riders"
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Monkey patching:
* Monkey Patching in Ruby
* Changing an existing ruby method
* Changing a method with parameters
* Safe Monkey patching with Refinements
* Changing any method
* Extending an existing class
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