Hyarus questions

Hyarus answers

• Is there a more concise way to extract (n > i) elements from an array?
• CS0034 C# Operator '-' is ambiguous on operands of type 'long' and 'ulong'
• Struggling with utf-16 encoding/decoding
• There is no argument given that corresponds to the required formal parameter 'value' of Dictionary<string, string>.Add(string, string) [duplicate]
• Is System.Messaging.dll not available in .Net Core?