Varray

:::info[Note] This is a point-in-time snapshot of the API documentation from January 2026. Going forward, we will not be maintaining a public copy of these references, and recommend users to refer to the built-in signature helpers available in the Hack LSP instead for complete and up-to-date information. :::

namespace HH;

function varray<Tv>(
  Traversable<Tv> $arr,
): varray<mixed, Tv>;

Parameters

• Traversable<Tv>$arr

Returns

• varray<mixed, Tv>