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This coding exercise comes from Upcase, the online learning platform we run. It's part of the Regular Expressions 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.
Anchors in regular expressions are a powerful tool that allows you to be much more precise in what you match. Instead of matching "a" anywhere in a string, you can match "a" at the start or end of a string.
For more, check out the documentation.
To start, you'll want to clone and run the setup script for the repo
git clone [email protected]:thoughtbot-upcase-exercises/regular-expressions-anchors.git
cd regular-expressions-anchors
bin/setup
First, run bin/setup.
Then, run rake to see the failing tests. You can run rake at any point to see the test results again.
Fill in the methods in lib/anchors.rb to make the tests pass.
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 Regular Expressions course to find the next exercise, or explore any of the other great content on Upcase.
regular-expressions-anchors 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.
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