23 essential features of C# 9 - C# 13

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Do you still write C# the way you did 7 years ago?  Here's how you can easily get up to speed:


C# 9
1. Records
2. Init-only setters
3. Top-level statements
4. Improved pattern matching
5. Target-type new

C# 10
6. File scoped namespace
7. Global using directive
8. Constant interpolated strings

C# 11
9. Raw literal strings
10. List patterns
11. File-scoped types
12. Required members

C# 12
13. Primary constructors
14. Collection expressions
15. Inline collections with ranges and slices
16. Default values for lambda expressions

C# 13
17. LINQ Index method
18. LINQ AggregateBy method
19. LINQ CountBy
20. Params collection
21. UUID version 7
22. Lock
23. Implicit index access

In today's newsletter, you get those features explained in the "C# Upskill Checklist."

For every feature you get:
1. Short explanation
2. Code example
3. Console output of the code snippet (where applicable)









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