HH\Lib\Dict\filter_with_key_async
Requires the Hack Standard Library to be installed.
Facebook Engineer?
This function is available as Dict\gen_filter_with_key() in Facebook's www repository.
Like filter_async, but lets you utilize the keys of your dict too
namespace HH\Lib\Dict;
function filter_with_key_async<Tk as arraykey, Tv>(
KeyedContainer<Tk, Tv> $traversable,
(function(Tk, Tv): Awaitable<bool>) $predicate,
): Awaitable<dict<Tk, Tv>>;
For non-async filters with key, see Dict\filter_with_key().
Time complexity: O(n * p), where p is the complexity of $value_predicate
Space complexity: O(n)
Parameters
KeyedContainer<Tk, Tv> $traversable(function(Tk, Tv): Awaitable<bool>) $predicate