Posted 14 days ago. Visible to the public.

Call original method when monkey patching

Ruby offers monkey patching methods in order to change the behavior of a library if there's no better way.

We can call the method we're overriding inside our monkey patch:

class Foo def bar(argument) 'Hello' + argument end end module FooExtensions def bar super(' in my') + ' World' end end class Foo prepend FooExtensions # the only change to above: prepend instead of include end # => 'Hello in my World'

As mentioned, monkey patches are usually a threat to your code quality, so try to avoid them if possible.

Further readings

For a better understanding have a look at this article.

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Owner of this card:

Jakob Scholz
Last edit:
4 days ago
by Tobias Kraze
About this deck:
We are makandra and do test-driven, agile Ruby on Rails software development.
License for source code
Posted by Jakob Scholz to makandra dev
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