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tmsmth
10,543 PointsWhy is there no argument in an instance method of a struct ?
I was doing a challenge and i saw this code :
struct Parser {
var data: [String : String?]?
func parse() throws {
guard let data = data else {
throw ParserError.emptyDictionary
}
guard let key = data["someKey"] else {
throw ParserError.invalidKey
}
}
}
Why the function parse doesnt need argument ? for example func parse(dic data: [String : String?]?)
Thanks !
2 Answers
Brandon Mahoney
iOS Development with Swift Techdegree Graduate 30,149 PointsI don't know what video this is but it looks like an outside class is going to be populating the variable data with key value pairs. The function parse is in the same scope so it seems it would be unnecessary to pass a dictionary into the variable 'data' and then also pass the same dictionary into the function.
tmsmth
10,543 Pointstmsmth
10,543 PointsOk i see thanks, i've found on the swift doc "An instance method has implicit access to all other instance methods and properties of that type."
Brandon Mahoney
iOS Development with Swift Techdegree Graduate 30,149 PointsBrandon Mahoney
iOS Development with Swift Techdegree Graduate 30,149 PointsCan you link the video?