Guru Stron questions

Guru Stron answers

• Dereference of a possibly null reference on FirstOrDefault
• ArgumentNullException: Value cannot be null. (Parameter 'items')
• Is there a way to unit test top-level statements in C#?
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• System.Text.Json.JsonException: 'Read unrecognized type discriminator id 'new-type'
• Mocking ReturnsAsync using Moq to return 2 values
• Conversion to generic type
• How to determine current version from VersionInfo for Fluent Migrator?
• Why do C# 12 primary constructors execute in opposite order?
• How to create a FrozenDictionary from a static list