Deploy Again (and Again, and Again...)
There are two kinds of software: the kind that changes, and the kind that dies. If your apps are useful and successful, you will have demands to change them...to add new features, support more users, and store more data. The ability to squeeze additional value out of already existing code is one of the most valuable skills a developer can have. If you’re good at it, you can do it indefinitely.
The approach you’ve seen in this book will help you do this. As your applications grow and change, the tests we added will help you deploy over and over again with confidence, knowing that the functionality you added a day, a month, or a year ago is still working. The simple tools we used to build our app will remain ...
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