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Anton Melekh
2,729 PointsJust wondering if it's correct to solve the task 1 of 3 in this challenge by writing code this way:
Logic seems to be correct for me and playground shows no errors, however, code isn't accepted by Treehouse. Can you please explain?
enum ParserError: ErrorType {
case EmptyDictionary
case InvalidKey
}
struct Parser {
var data: [String : String?]?
func parse(dict: [String: String]) throws {
guard data != nil else {
throw ParserError.EmptyDictionary
}
guard dict["someKey"] != nil else {
throw ParserError.InvalidKey
}
}
}
let data: [String : String?]? = ["someKey": nil]
let parser = Parser(data: data)
1 Answer
Safwat Shenouda
12,362 PointsHi Anton,
There is some confusion in function parse, it should not take any parametrs and just operate on data dictionary included. so please change it like this and it will be accepted. I tried it:
enum ParserError: ErrorType {
case EmptyDictionary
case InvalidKey
}
struct Parser {
var data: [String : String?]?
func parse() throws {
guard data != nil else {
throw ParserError.EmptyDictionary
}
guard data!.keys.contains("someKey") else {
throw ParserError.InvalidKey
}
}
}
let data: [String : String?]? = ["someKey": nil]
let parser = Parser(data: data)