Welcome to the Treehouse Community
Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.
Start your free trialios1alamin
4,310 PointsSolution of the Coding Challenge
Can you please upload the solution of each Coding Challenge? Sometimes we get confused so, a solution for each Coding Challenge will be helpful for us.
1 Answer
Matt Sousa
6,799 PointsHere is my code:
enum ParserError: Error {
case emptyDictionary(description: String) case invalidKey(description: String) }
struct Parser { var data: [String : String?]?
func parse() throws {
guard data != nil else { throw ParserError.emptyDictionary(description: "empty dictionary") }
guard data?.keys.contains("someKey") == true else {
throw ParserError.invalidKey(description: "invalid key")
}
}
}
let data: [String : String?]? = ["someKey": nil] let parser = Parser(data: data)
do { try parser.parse() } catch ParserError.emptyDictionary(let description) { print(description) } catch ParserError.invalidKey(let description) { print(description) }
wwyattw
10,389 Pointswwyattw
10,389 PointsThis is my code
enum ParserError: Error { case emptyDictionary(description: String) case invalidKey(description: String) }
struct Parser { var data: [String : String?]?
}
let data: [String : String?]? = ["someKey": nil] let parser = Parser(data: data)
do { let parser = try Parser.parse } catch ParserError.emptyDictionary(let description) { print(description) } catch ParserError.invalidKey(let description) { print(description) }