[Solved] What will be the output of this code snippet?let defaults = UserDefaults.standard defaults.set(true, forKey: "isLoggedIn") let loggedIn = defaults.bool(forKey: "isLoggedIn") print(loggedIn) | iOS Swift

iOS Swift - Local Data Persistence

What will be the output of this code snippet?

let defaults = UserDefaults.standard
defaults.set(true, forKey: "isLoggedIn")
let loggedIn = defaults.bool(forKey: "isLoggedIn")
print(loggedIn)

ACompilation error

Btrue

Cnil

Dfalse

Step-by-Step Solution

Solution:

Step 1: Store a Boolean value
The code saves true for key "isLoggedIn" using set(_:forKey:).
Step 2: Retrieve the Boolean value
Using bool(forKey:) returns the stored value true.
Final Answer:
true -> Option B
Quick Check:
Stored bool retrieved correctly = true [OK]

Quick Trick: bool(forKey:) returns stored Boolean or false if missing [OK]

Common Mistakes:

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What will be the output of this code snippet?