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DRY Principle
Last Updated: February 12, 2026
Ashish Pratap Singh
High Priority
7 min read
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1. What Is the DRY Principle?
The Rule of Three
2. A Real-World Example
3. Why Repetition Is a Problem
4. Applying DRY
5. When it is Okay to Repeat
6. Practical Example: Notification System
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