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iOS Error Handling in Swift 2.0 Error Handling Throwing Errors

Ashleigh Nombre
Ashleigh Nombre
2,308 Points
Posted by Ashleigh Nombre
Ashleigh Nombre
2,308 Points

When throwing an error how do you come up with a fund that has no data

I just need a brief overview

error.swift 
enum BookError: ErrorType {
func lend() throws -> func {
      throw lendError.InvalidData
  }
  case IncorrectTitle
}