How to remove all the spaces and \n\r in a String?

Question

What is the most efficient way to remove all the spaces, \\n and \\r in a String in Swift?

I have tried:

for character in s         


        

Answer 1

edit/update:

Swift 5.2 or later

We can use the new Character property isWhitespace

---

let textInput = "Line 1 \n Line 2 \n\r"
let result = textInput.filter { !$0.isWhitespace }

result  //  "Line1Line2"

---

extension StringProtocol where Self: RangeReplaceableCollection {
    var removingAllWhitespaces: Self {
        filter { !$0.isWhitespace }
    }
    mutating func removeAllWhitespaces() {
        removeAll(where: \.isWhitespace)
    }
}

---

let textInput = "Line 1 \n Line 2 \n\r"
let result = textInput.removingAllWhitespaces   //"Line1Line2"

var test = "Line 1 \n Line 2 \n\r"
test.removeAllWhitespaces()
print(test)  // "Line1Line2"

Note: For older Swift versions syntax check edit history