Tim Destan questions

Tim Destan answers

• How do I make Ruby's Array difference (minus) method, `Array#-`, work with my classes?
• call export function in Node.js
• Does FileStream.ReadAsync sometimes complete synchronously?
• LINQ sum datatable column where
• Variable getting initialized with nil
• Counting hash values in Ruby [closed]
• Can you specify type argument for None or tell compiler that it's an Option[String]?