Std.Option.fromArray
1 declaration
fn
fromArray: &Array[T] -> Option[T]This is a callable function.
What it does
The first element of an array, as an option.
The bridge from "a collection that might be empty" to "a value that might be
absent", which is the shape the rest of this module works on.
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.
