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iOS

Posted by Ryan Jin
Ryan Jin
15,337 Points

How to change a certain character from a string

Hi, I am working on a program that can make the first letter of every word to be capitalised. So for example, if I pass in the string "new york" to this function, it will return "New York". I am currently working on how to change that character, I already made an extension to get the character at a certain index, but I cannot modify it. So can someone help me out with that. Thanks

extension String {

    subscript (i: Int) -> Character {
        return self[advance(self.startIndex, i)]
    }

    subscript (i: Int) -> String {
        return String(self[i] as Character)
    }

    subscript (r: Range<Int>) -> String {
        return substringWithRange(Range(start: advance(startIndex, r.startIndex), end: advance(startIndex, r.endIndex)))
    }

}

1 Answer

Chris Stromberg
Chris Stromberg
Courses Plus Student 13,389 Points 
func capitalize(stringToCap:String) ->String {

   return stringToCap.capitalizedString
}

var bigApple = "new york"

capitalize(bigApple)     //"New york"
Ryan Jin
Ryan Jin
15,337 Points

Oh thanks, I just made it too complicated.