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Std.NonEmpty.fromArray

1 declaration

fn

fromArray: &Array[T] -> Option[Std.NonEmpty.NonEmpty[T]]

This is a callable function.

What it does

An array as a non-empty sequence, or None when it is empty.

The only way in from ordinary data, and the one place the question is

asked. Everything after it may assume the answer.

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.
  • & borrows a value for this call instead of moving or copying it.
  • 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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