Std.Option.unwrapOrElse
1 declaration
fn
unwrapOrElse: Option[T] -> fn() -> T -> TThis is a callable function.
What it does
The value, or a fallback computed only when there is none.
The fallback is a function so it runs only when it is needed, which matters
when computing it is expensive or can itself fail.
Read the signature
- The text after the name is the type checked by Pudu.
- Read arrows from left to right: inputs come first, and the final type is returned.
- Names inside [ ] are type arguments, such as the item type held by a collection.
- Option holds Some(value) or None when no value is available.
