Jan Östlund jannejava
jorgenisaksson
/ StringExtensions.swift
Last active
April 3, 2017 08:45
Uppercase the first character of a Swift string
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| import Foundation | |
| extension String { | |
| func firstCharacterUpperCase() -> String { | |
| if let firstCharacter = characters.first, characters.count > 0 { | |
| return replacingCharacters(in: startIndex ..< index(after: startIndex), with: String(firstCharacter).uppercased()) | |
| } | |
| return self | |
| } |
jorgenisaksson
/ ConformsToProtol.swift
Last active
March 24, 2017 13:26
Check if a class conforms to a protocol instead of using respondsToSelector like in obj-c
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| import UIKit | |
| // the protocol | |
| protocol LayerManagerDelegate: class { | |
| func doSomething() | |
| } | |
| // the class | |
| class LayerManager { | |