Using Immutable Data Structures in C# and .NET

on YouTube ↗47m

" summary

Argues that immutability in C# reduces reasoning overhead and threading bugs and shows practical tools: System.Collections.Immutable where immutable lists create new instances on Add, AutoMapper and Newtonsoft.Json which map into constructor parameters, and System.Text.Json which requires custom converters for immutable types. Recommends refactors: prefer projection over mutation, use factory/builder patterns, immutable collections for shared data, and accept tradeoffs with Entity Framework and serializers when full immutability is impractical.

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" chapters (49)

1. 0:00Introduction
2. 2:10Fsharp
3. 3:30How do you know if someone is functional
4. 3:44C is something that is Bill
5. 4:14Bad immutability jokes
6. 4:24Scott Hanselman example
7. 7:28List example
8. 8:50Thinking
9. 9:07Synchronization Quadrant
10. 10:12Moores Law
11. 11:36History of Immutability
12. 12:35Immutable Classes
13. 12:56Auto Properties
14. 13:21ReadOnly Structures
15. 14:33Anonymous Types
16. 15:25Immutability
17. 15:45Mutation Patterns
18. 16:12Unnecessary Setters
19. 16:59Columns for Table
20. 17:17Column Type String
21. 17:46Column Type Setter
22. 18:36Projection over Mutation
23. 19:04My Main Principle
24. 19:39Open Setters
25. 19:56Setup Methods
26. 21:09Refactoring
27. 22:11Immutable List
28. 23:07Mutable List
29. 24:01ReadOnly List
30. 24:44AutoMapper
31. 25:36Constructor
32. 26:31SystemTextJason
33. 27:47Builder Pattern
34. 28:26DBContext Options
35. 29:15No Open Setters
36. 29:30Functional Ideas Only Work in C
37. 30:12Immutability in C
38. 30:40Entity Framework
39. 32:32Hitting Ranks
40. 33:37Tradeoff
41. 35:36American Currency
42. 35:51Immutability Has Helped Me Evaluate
43. 38:19Align With Your Team
44. 39:16Application Architecture
45. 40:26Persistent Data Structures
46. 40:43Event Sourcing
47. 41:38Redux
48. 42:41Change your mind
49. 43:01Questions

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