April 2015
Intermediate to advanced
264 pages
5h 31m
English
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Appendix A. Answers to Exercises
This Appendix contains answers to the exercises presented throughout this book. Keep in mind that there is no single correct solution for any of these exercises. There are many possible solutions, each with their own advantages and disadvantages. Wherever possible, I have mentioned why I took a certain path, so that you can see my reasoning and compare the pros and cons with the solution that you have come up with.
Red-Green-Refactor – The TDD Cycle
This exercise asks us to add support for updates which come out of order, that is, a newer update is followed by an older update. We need to use the timestamp to determine which update is newer and which is older.
The following is a test case for this requirement:
def test_price_is_the_latest_even_if_updates_are_made_out_of_order(self): ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.