Swift String Cheat Sheet

String+Extensions.swift

import Foundation

/// Find specific character in String using String.Index (Unicode-compliant way)
/// Usage:
/// let word = "Banana"
/// let fifthCharacter = word[4]
/// print("The 5th character is: \(fifthCharacter)") // Prints: The 5th character is: n
extension StringProtocol {
    subscript(offset: Int) -> Character {
        self[index(startIndex, offsetBy: offset)]
    }
}