Alan Coromano questions

• Multi-threading in Scala -- dealing only with immutability
• String.format causes an error
• Cannot find Await from akka
• Unable to send a dictionary to RabbitMQ (unhashable type: 'slice')
• Working with immutable HashMap in Scala
• Operator <=> in Ruby [duplicate]
• TextReader and peek next line
• Using "if" as an expression
• The ampersand operator with parameters [duplicate]
• Creating infix function

Alan Coromano answers