Keys

:::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. :::

Returns a ConstVector containing the keys of the current ConstMap

public function keys(): ConstVector<Tk>;

Returns

• ConstVector<Tk> - a ConstVector containing the keys of the current ConstMap.