CustomUserDefaultsUsage1.swift

// save name and email
let fullName = "John Smith"
CustomUserDefaults.shared.set(fullName, key: .name)
let userEmail = "john@example.com"
CustomUserDefaults.shared.set(userEmail, key: .email)

// print stored name and email
let savedName = CustomUserDefaults.shared.get(key: .name)
print(savedName) // result: Optional(John Smith)

let savedEmail = CustomUserDefaults.shared.get(key: .email)
print(savedEmail) // result: Optional(john@example.com)

let isUserLogin = CustomUserDefaults.shared.get(key: .isUserLogin)
print(isUserLogin)