What are optional patterns in Swift?

What are optional patterns in Swift?

Optional patterns in Swift allow you to safely handle values that may be nil. They help in unwrapping optionals.

Can you give me an example of how to use optional patterns?

Sure! You can use if let or guard let to unwrap optionals safely. For example:

if let value = optionalValue {
    print(value)
} else {
    print("Value is nil")
}

What is the difference between if let and guard let?

if let allows you to unwrap an optional within a specific scope, while guard let requires the value to be unwrapped before proceeding, ensuring that the rest of the code can safely use the unwrapped value.

Are there any other patterns for handling optionals?

Yes, you can also use optional chaining and the nil-coalescing operator to handle optionals in Swift.