Ruby - Gems and Bundler
Which of the following version constraints allows patch-level updates but prevents minor version changes?
Which of the following version constraints allows patch-level updates but prevents minor version changes?
easy📝 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Understand the meaning of the pessimistic operator ~>
The operator ~> 2.3 means ">= 2.3 and < 3.0" allowing minor version updates. ~> 2.3.0 means ">= 2.3.0 and < 2.4.0" allowing patch updates only.Step 2: Identify which constraint restricts minor version changes
~> 2.3.0 restricts updates to patch versions within 2.3.x, preventing minor version 2.4 or higher.Final Answer:
~> 2.3.0 -> Option BQuick Check:
Pessimistic operator with patch precision = ~> 2.3.0 [OK]
Quick Trick: Use ~> with three parts to lock minor version, allow patch updates [OK]
Common Mistakes:
- Using ~> 2.3 allows minor updates, not just patch
- Confusing >= with ~>
- Assuming ~> 2 locks major version only
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