Ruby - Gems and Bundler
You want to allow any version of the gem 'devise' starting from 4.7.1 up to but not including 5.0.0, but exclude all 4.8.x versions due to bugs. Which Gemfile constraint achieves this?
You want to allow any version of the gem 'devise' starting from 4.7.1 up to but not including 5.0.0, but exclude all 4.8.x versions due to bugs. Which Gemfile constraint achieves this?
hard📝 Application Q8 of 15
Step-by-Step Solution
Solution:
Step 1: Understand the requirement to exclude 4.8.x versions
We want versions from 4.7.1 up to 4.8.0 (excluding 4.8.x), and from 4.9.0 up to 5.0.0.Step 2: Combine constraints to exclude 4.8.x
Using two ranges: >= 4.7.1 and < 4.8.0, and >= 4.9.0 and < 5.0.0 excludes 4.8.x versions.Final Answer:
>= 4.7.1, < 4.8.0, >= 4.9.0, < 5.0.0 -> Option AQuick Check:
Use multiple constraints to exclude buggy versions = >= 4.7.1, < 4.8.0, >= 4.9.0, < 5.0.0 [OK]
Quick Trick: Use multiple version ranges to exclude specific versions [OK]
Common Mistakes:
- Using overlapping ranges that include buggy versions
- Incorrectly specifying >= and < operators
- Assuming ~> can exclude specific minor versions
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