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Std.Option.unwrapOrElse

1 declaration

fn

unwrapOrElse: Option[T] -> fn() -> T -> T

This 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.

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