On the last line it gives the error " Cannot assign value of type '[String]' to type 'String' ", im a beginner to Swift and i have tried lot things but cant solve this issue
func shortNameFromName (_ fullName: String) -> String{
var lowerCasedName = fullName.lowercased()
var shortName = lowerCasedName.components(separatedBy: " ")
return shortName
}
Your function is trying to return a String yet the value you are actually trying to return is a [String]
Simply change it to this:
func shortNameFromName (_ fullName: String) -> [String] {
var lowerCasedName = fullName.lowercased()
var shortName = lowerCasedName.components(separatedBy: " ")
return shortName
}
Alternatively if you do just want to return a single string value then do this to return the first object from the array of strings (or whichever string you want to return)
func shortNameFromName (_ fullName: String) -> String{
var lowerCasedName = fullName.lowercased()
var shortName = lowerCasedName.components(separatedBy: " ")
return shortName[0]
}
The [0] denotes which string you want to return from the array by it's index
The method components(separatedBy:) returns a string array [String].
You function's return type is String and not [String]
So there are 2 ways to resolve the issue depending on your requirement.
1. Use [String] as return type of function, i.e.
func shortNameFromName (_ fullName: String) -> [String]
{
var lowerCasedName = fullName.lowercased()
var shortName = lowerCasedName.components(separatedBy: " ")
return shortName
}
2. Return a particular value from shortName array, i.e.
func shortNameFromName (_ fullName: String) -> String
{
var lowerCasedName = fullName.lowercased()
var shortName = lowerCasedName.components(separatedBy: " ")
return shortName.first! //Make sure shortName is not empty before force unwrapping it
}
Quoting from Apple Docs:
components(separatedBy:)
Returns an array containing substrings from the receiver that have been divided by a given separator.
Decalaration:
func components(separatedBy separator: String) -> [String]
So your function should be like this:
func shortNameFromName (_ fullName: String) -> [String] {
var lowerCasedName = fullName.lowercased()
var shortName = lowerCasedName.components(separatedBy: " ")
return shortName
}
