Any way to replace characters on Swift String?

Question

I am looking for a way to replace characters in a Swift String.

Example: \"This is my string\"

I would like to replace \" \" with \"+\" to get \

Answer 1

A Swift 3 solution along the lines of Sunkas's:

extension String {
    mutating func replace(_ originalString:String, with newString:String) {
        self = self.replacingOccurrences(of: originalString, with: newString)
    }
}

Use:

var string = "foo!"
string.replace("!", with: "?")
print(string)

Output:

foo?