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The Ruby and Rails community linklog

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Exploring Ruby Warnings

by Ernesto Tagwerker —

We are used to checking the deprecation warnings displayed by Rails or warnings from different gems, but Ruby itself can also display warnings to help us find code that can be problematic.

In this article Ariel Juodziukynas explores how to use them, how to analyze them, and some examples of interesting warnings that can be really helpful during upgrade projects.

By turning on Ruby warnings you can find a lot of information about our app, not only code that can be improved but also bugs and hints for changes that we’ll need during the upgrade.

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