Without exemplars of good practice to study and emulate, the Practice, Practice, Practice pattern only entrenches the bad habits you don’t know you have. If you never walk a mile in someone else’s moccasins, you may come to believe that all shoes are meant to have stones in them. So how do you find out if your work is any good, given that those around you may not have the ability to tell good code from bad?
The solution the text offers is to seek out other people’s code and read it. Start looking into applications and tools you use every day. It allows to you to learn how other professionals write code, and the thought process behind creating the infrastructure you’re using. When examining open source projects, it’s best to download the most recent version and preferably from the direct source so you can inspect the history of commits and track future updates. Learn the codebase and how the files are structured. Think about how you would have done things differently, and if maybe you should rethink the way you do something because someone might have a better solution.
This pattern has good tips on learning from the source. I liked the idea of starting with tools and applications you work with every day, I think starting with open source projects is a great way to learn how current professionals are writing code and what practices they are utilizing. You may find things you disagree with and things that make you re-think how to approach a problem. I think it’s also good advice to seek out others to read code you’ve written and have them offer feedback. It refreshing to know that so much content is available open source, and it can give people like me access to real working programs that I can learn and possible contribute to in the future. I like the idea of looking into sites like Git, Subversion, and Mercurial and learning how these projects work, and what design patterns and algorithms they are using. I believe reading and understanding open source projects will make me a better programmer, and will help me greatly in my professional career as I continue to add to my toolbox of best practices.