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iOS Error Handling in Swift Error Handling Handling Errors

Richard Pitts
PLUS
Richard Pitts
Courses Plus Student 1,243 Points
Posted by Richard Pitts
Richard Pitts
Courses Plus Student 1,243 Points

Too hard, no idea

Too hard, no idea

error.swift 
enum ParserError: Error {
  case emptyDictionary
  case invalidKey
}

struct Parser {
  var data: [String : String?]?

  func parse() throws {if nil throw ParserError.emptyDictionary} else if "someKey" is nil throw ParserError.invalidkey
  }
}

let data: [String : String?]? = ["someKey": nil]
let parser = Parser(data: data)