Cacher is the code snippet organizer for pro developers

let str = "Hello, stackoverflow"
let chars: [Character] = ["a", "e", "i"]
let myStrings = ["Hello", ", ", "overflow"]

let newString = str.stringByRemovingAll(chars)
let anotherString = str.stringByRemovingAll(myStrings)

// Swift 3 example
extension String {
    func stringByRemovingAll(characters: [Character]) -> String {
        return String(self.characters.filter({ !characters.contains($0) }))
    }
    
    func stringByRemovingAll(subStrings: [String]) -> String {
        var resultString = self
        _ = subStrings.map { resultString = resultString.replacingOccurrences(of: $0, with: "") }
        return resultString
    }
}