NSUserDefaults removeObjectForKey vs. setObject:nil

Question

Are the following two lines equivalent?

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

2. [[NSUserDefa

Answer 1

Swift 3.0

The below answer is no longer the case when I tested this. When set to nil the result is NSCFData being stored. Possibly an NSNull object reference, but I am not positive.

To completely remove a value for a key use UserDefaults.standard.removeObject(forKey: "YourDefault")

I tested with the following code:

UserDefaults.standard.set(["a", "b", "c"], forKey: "MyDefaults")
print("Test A: My saved defaults \(UserDefaults.standard.object(forKey: "MyDefaults"))")

UserDefaults.standard.set(nil, forKey: "MyDefaults")
print("Test B: My defaults set to nil \(UserDefaults.standard.object(forKey: "MyDefaults"))")

UserDefaults.standard.removeObject(forKey: "MyDefaults")
print("Test C: My defaults removed \(UserDefaults.standard.object(forKey: "MyDefaults"))")