NSString replace repeated newlines with single newline

Question

I have an NSString which can have multiple \\n in between the string. I need to replace the multiple occurrence of \\n\'s with a single \\n.

I tried this co

Answer 1

For anyone looking for an Updated Swift 4 Answer:

extension String {

   func removeMultipleNewlinesFromMiddle() -> String {
       let returnString = trimmedString.replacingOccurrences(of: "\n+", with: "\n", options: .regularExpression, range: nil)
       return (returnString)
   }
}

Usage :

let str = "Hello \n\n\nWorld \n\nHow are you\n?"
print (str.removeMultipleNewlinesFromMiddle())

Output :

Hello

World

How are you

?