@ezbackend: 1. ๐๐๐ (๐๐จ๐ง'๐ญ ๐๐๐ฉ๐๐๐ญ ๐๐จ๐ฎ๐ซ๐ฌ๐๐ฅ๐): Avoid duplicating code. Keep logic centralized to make your codebase easier to maintain. 2. ๐๐๐๐ (๐๐๐๐ฉ ๐๐ญ ๐๐ข๐ฆ๐ฉ๐ฅ๐, ๐๐ญ๐ฎ๐ฉ๐ข๐): Aim for simplicity in your solutions. Avoid overengineering or adding unnecessary layers. 3. ๐๐๐๐๐ (๐๐จ๐ฎ ๐๐ซ๐๐งโ๐ญ ๐๐จ๐ง๐ง๐ ๐๐๐๐ ๐๐ญ): Only build what you need today. Don't waste time on hypothetical features that may never be used. 4. LOD (๐๐๐ฐ ๐จ๐ ๐๐๐ฆ๐๐ญ๐๐ซ): Talk only to your immediate neighbors. Donโt chain too many calls. ๐๐๐๐๐ ๐๐ซ๐ข๐ง๐๐ข๐ฉ๐ฅ๐๐ฌ: 5. ๐๐๐ (๐๐ข๐ง๐ ๐ฅ๐ ๐๐๐ฌ๐ฉ๐จ๐ง๐ฌ๐ข๐๐ข๐ฅ๐ข๐ญ๐ฒ ๐๐ซ๐ข๐ง๐๐ข๐ฉ๐ฅ๐): A class should have one responsibility only. Keep each component focused and cohesive. 6. ๐๐๐ (๐๐ฉ๐๐ง/๐๐ฅ๐จ๐ฌ๐๐ ๐๐ซ๐ข๐ง๐๐ข๐ฉ๐ฅ๐): Code should be open for extension but closed for modification. Add new features without altering existing logic. 7. ๐๐๐ (๐๐ข๐ฌ๐ค๐จ๐ฏ ๐๐ฎ๐๐ฌ๐ญ๐ข๐ญ๐ฎ๐ญ๐ข๐จ๐ง ๐๐ซ๐ข๐ง๐๐ข๐ฉ๐ฅ๐): Subclasses must be usable in place of their parent classes without breaking functionality. 8. ๐๐๐ (๐๐ง๐ญ๐๐ซ๐๐๐๐ ๐๐๐ ๐ซ๐๐ ๐๐ญ๐ข๐จ๐ง ๐๐ซ๐ข๐ง๐๐ข๐ฉ๐ฅ๐): Design small, focused interfaces instead of large, general ones. 9. ๐๐๐ (๐๐๐ฉ๐๐ง๐๐๐ง๐๐ฒ ๐๐ง๐ฏ๐๐ซ๐ฌ๐ข๐จ๐ง ๐๐ซ๐ข๐ง๐๐ข๐ฉ๐ฅ๐): High-level modules should not depend on low-level modules. Both should depend on abstractions. #softwaredeveloper #softwareengineer #developer #backend #programming #coding #systemdesign #solutionarchitect #seniordeveloper #systemdesigninterview #devops
