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iOS Error Handling in Swift Error Handling Throwing Errors

Martel Storm
Martel Storm
4,157 Points
Posted by Martel Storm
Martel Storm
4,157 Points

Throwing Errors in SWIFT3

Sorry, I'm rusty and it's truly embarrassing that I can't get this one... Help?

error.swift 
enum BookError: Error {
    case incorrectTitle
}

func lend() throws -> BookError {
    throw BookError.incorrectTitle
}

3 Answers

Allen Soberano
Allen Soberano
13,634 Points
Allen Soberano
Allen Soberano
13,634 Points

You have a return type -> BookError

Remove it and should be fine.

Jeff McDivitt
Jeff McDivitt
23,970 Points
Jeff McDivitt
Jeff McDivitt
23,970 Points 
func lend() throws {

throw BookError.incorrectTitle

}
Allen Soberano
Allen Soberano
13,634 Points
Allen Soberano
Allen Soberano
13,634 Points

Hint: Directions state:

Name this function lend. It takes no parameters and has no return type.

->

Martel Storm
Martel Storm
4,157 Points
Martel Storm
Martel Storm
4,157 Points

I couldn't get it. What's the answer?