Sometimes we need to customize Ruby classes. I am going to introduce how to extend the Ruby Float class in simple steps.

As we are going to extend, create an extensions folder inside lib and create a float.rb inside this folder.


Now we need to initialize this module when application starts so that we can access this method in entire application. Create a file load_extensions.rb in initializers


Now restart your server; that’s it. Now you can apply this with_precision() on float object anywhere in Application.

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