NSUserDefaults removeObjectForKey vs. setObject:nil

Question

Are the following two lines equivalent?

1. [[NSUserDefaults standardUserDefaults] removeObjectForKey:@\"example key\"]

2. [[NSUserDefa

Answer 1

Swift 5.0 + iOS 11 and up

Both methods remove the value. Tried this in a playground:

import Foundation

let key = "Test"
let value = "test"
let defaults = UserDefaults.standard

func printUD() {
    print("UserDefaults after modification:\n")
    defaults.dictionaryRepresentation().forEach { print("\($0): \($1)\n") }
    print("-------------\n\n")
}

defaults.set(value, forKey: key); printUD()
defaults.set(nil, forKey: key); printUD()
defaults.set(value, forKey: key); printUD()
defaults.removeObject(forKey: key); printUD()

Prior to iOS 11 this will result in serializing nil into Data and throw an error.