Remove the first six characters from a String (Swift)

Question

What's the best way to go about removing the first six characters of a string? Through Stack Overflow, I've found a couple of ways that were supposed to be solutions but I noticed an error with them. For instance,

extension String { func removing(charactersOf string: String) -> String {     let characterSet = CharacterSet(charactersIn: string)     let components = self.components(separatedBy: characterSet)     return components.joined(separator: "") } 

If I type in a website like https://www.example.com, and store it as a variable named website, then type in the following

website.removing(charactersOf: "https://") 

it removes the https:// portion but it also removes all h's, all t's, :'s, etc. from the text.

How can I just delete the first characters?

Answer 1

In Swift 4 it is really simple, just use dropFirst(n: Int)

let myString = "Hello World" myString.dropFirst(6) //World 

In your case: website.dropFirst(6)

Answer 2

Why not :

let stripped = String(website.characters.dropFirst(6)) 

Seems more concise and straightforward to me.

(it won't work with multi-char emojis either mind you)

[EDIT] Swift 4 made this even shorter:

let stripped = String(website.dropFirst(6))