Hey there! We're thoughtbot, a design and development consultancy that brings your digital product ideas to life. We also love to share what we learn.
This coding exercise comes from Upcase, the online learning platform we run. It's part of the Refactoring course and is just one small sample of all the great material available on Upcase, so be sure to visit and check out the rest.
Within the total method of the Tipper class, you'll be replacing variables with query methods.
While extracting variables can make longer expressions cleaner, it occasionally leads to longer methods as well. Turning these variables into methods not only simplifies your code, but encourages reuse of these new methods.
Read more about replacing variables with query methods.
To start, you'll want to clone and run the setup script for the repo
git clone [email protected]:thoughtbot-upcase-exercises/replace-variable-with-query.git
cd replace-variable-with-query
bin/setup
Redefine your variables as query methods.
Make sure the tests are still passing by running:
rake
Check out the featured solution branch to see the approach we recommend for this exercise.
If you find yourself stuck, be sure to check out the associated Upcase Forum discussion for this exercise to see what other folks have said.
When you've finished the exercise, head on back to the Refactoring course to find the next exercise, or explore any of the other great content on Upcase.
replace-variable-with-query is Copyright © 2015-2018 thoughtbot, inc. It is free software, and may be redistributed under the terms specified in the LICENSE file.
This exercise is maintained and funded by thoughtbot, inc.
The names and logos for Upcase and thoughtbot are registered trademarks of thoughtbot, inc.