Code Whisper
@codewhisperdev
👾 Anonymous engineer, sharing thoughts on code, tech & systems. 🚫 No face, just logic.
.NET 9 introduces the new LINQ method CountBy. It allows for calculating the frequency of a key. This improvement looks nice. What do you think?
LINQ Tip: Use ToList() after filtering, not before. Why? 🔹 First version loads everything into memory before filtering 🔹 Second version filters at source, better for DB or large collections 🔹 Especially important when using EF Core or APIs with IQueryable #charp #dotnet
🔹 What is Queue<T>? Queue<T> is a First-In-First-Out (FIFO) collection in C#. It means the first item you add is the first one to be removed. When to use? - Task scheduling - Print jobs - Message handling - Breadth-first search (BFS) in graphs Example:
SQL Tip: Always monitor and maintain your indexes. Unused or duplicate indexes = slower writes and wasted space. Why? - Clean indexes = faster inserts/updates - Less I/O, better performance 🔍 Use this to find unused indexes in SQL Server
United States Trendy
- 1. Chauncey Billups 81.3K posts
- 2. #FalloutDay 4,636 posts
- 3. Damon Jones 23.1K posts
- 4. Mafia 115K posts
- 5. Binance 186K posts
- 6. #7_years_with_ATEEZ 67.9K posts
- 7. Ti West 2,261 posts
- 8. Tiago Splitter 2,887 posts
- 9. #에이티즈_7주년_항해는_계속된다 53.3K posts
- 10. The FBI 169K posts
- 11. #A_TO_Z 52.5K posts
- 12. Changpeng Zhao 18.3K posts
- 13. Kash Patel 47.4K posts
- 14. La Cosa Nostra 9,170 posts
- 15. Gilbert Arenas 8,655 posts
- 16. Gambling 163K posts
- 17. Kirby Air Riders 10.7K posts
- 18. The NBA 224K posts
- 19. 5sos 34.8K posts
- 20. New Vegas 6,064 posts
Something went wrong.
Something went wrong.